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Text File | 1997-11-01 | 185KB | 4,466 lines

3D Three Dimensional 4GL Fourth Generation Language A Ampère A Accumulator A Area A Angström A-DISK (Name of CMS mini-disk on mainframe computer) A/D Analog/Digital A/M Auto/Manual A/N Alpha/Numeric A/P Accounts Payable A/T Action Time A/UX Unix for the MacIntosh Computer AAACX Automated Administrative Activities for DPCX AAAS American Association for the Advancement of Science AAIMS An Analytical Information Management System AAP Automated Accounts Payable AAS Advanced Automation System AAS Advanced Administration System AAS Automated Accounting System AAVD Automatic Alternate Voice Data ABA American Bankers Association ABA American Bar Association ABBR Abbreviation ABC Automated Book Catalog ABC Atansoff-Berry-Computer ABC Automatic Bandwidth Control ABCS Advanced Business Computer Systems International ABEND Abnormal End (of job) ABF Application-By-Forms ABI Application Binary Interface ABIOS Advanced Basic Input/Output System ABM Automatic Batch Mixing ABM Antiballistic Missile ABO Advanced Byte-Oriented ABS Absolute ABT Answer-Back Tone ABT Abort Timer AC Alternating Current AC Analog Computer AC/DC Alternating Current/Direct Current ACA Adjacent-Channel Attenuation ACAP Automatic Circuit Analysis Program ACC Accumulator ACD Automatic Call Distribution ACD Automatic Call Distributor ACE Application Construction Environment ACE Automatic Computing Engine ACE Automated Cartridge Evaluator (Memorex-telex) ACF Apple Communications Framework ACF Advanced Communications Function ACF Advanced Communications Facility ACH Automatic Clearing House ACI Asynchronous Communications Interface ACIA Asynchronous Communications Interface Adaptor ACIS Academic Information Systems (IBM) ACK Access Control List ACK Acknowledgment ACL Automatic Cartridge Loader ACMS Application Control & Management System (HP) ACR Abandon Call & Retry ACS Automatic Cartridge System ACS Asynchronous Communication Server ACS Auxiliary Core Storage ACS Advanced Communication System (AT&T) ACT Accumulator ACTRAN Analog Computer TRANslator ACTS Automatic Computer Telex Service ACU Automatic Calling Unit ACV Access Control Verification AD Average Deviation ADA A programming language (after Augusta Ada) ADA Automatic Data Acquisition ADABAS Adaptable Data Management System (software ag) ADB Apple Desktop Bus ADC Advanced Development Center ADC Air Data Computer ADC Analog-to-Digital Converter ADCCP Advanced Data Communications Control Procedure ADD Authorized Data Distributor ADDAR Automatic Digital Data Acquisition & Recording ADDR ADDRess ADDS Advanced Data Dictionary System ADE Automatic Design Engineering ADF Application Development Facility (IBM) ADF Automatic Document Feeder ADIS Automatic Data Interchange System ADIX Advanced Digital Information Exchange ADL Automatic Data Link ADLC Advanced Data Link Controller ADM Adaptive Delta Modulation ADMIN Administration ADONIS Automatic Digital ON-line Instrumentation System ADP Automatic Data Processing ADPC Automatic Data Processing Center ADPCM Adaptive Differential Pulse-Code Modulation ADPE Automatic Data Processing Equipment ADPE Auxiliary Data Processing Equipment ADPP Automatic Data Processing Program ADPS Automatic Display & Plotting System ADPS Automatic Data Processing System ADR Address ADR Address Register ADRAC Automatic Digital Recording And Control ADRS A Departmental Reporting System (IBM) ADRS Address ADRT Automatic Data Recorded Transcriber ADS Address Data Strobe ADS Advanced Data Systems ADS Audio Distribution System ADS Accurately Defined System ADS-TP Administrative Data Systems-Teleprocessing System ADS/O Application Development System/On-line ADSP Apple Data Stream Protocol ADT Automatic Data Translator ADU Automatic Dialing Unit ADWP Application Development Without Programmers ADX Automatic Data eXchange AE Application Engineer AE Advanced Engine (IBM) AEC Architecture Engineering & Construction AED Algol Extended Design AED Automated Engineering Design AEMS Airline Economic Modeling System AESOP An Evolutionary System for On-line Processing AF Audio Frequency AFC Automatic Frequency Control AFG Automatic Function Generator AFL Abstract Family of Languages AFO Advanced File Organization AFP Appletalk File Protocol AFT Active File Table AFTOMS Air Force Technical Order Management System AGC Automatic Gain Control AH Ampere-Hour (also Amp Hr) AHPL A Hardware Programming Language AI Artificial Intelligence AI/ES Artificial Intelligence/Expert Systems AIDO Automatic Identification of Outward Dialed Calls AIDS Automatic Integrated Debugging System AIDS Administrative Information Data System AIG Address-Indicating Groups AIM Advanced Information Management AIM Artificial Intelligence Markets AIRS Automatic Information Retrieval System AIX Advanced Interactive eXecutive AJPO ADA Joint Project Office (at Pentagon) AL Assembly Language ALA Address Latch Attachment ALAP As Late As Possible ALC Assembler Language Coding ALC Airline Link Control ALC Automatic Level Control ALD Analog Line Driver ALEX Adult Learning Exchange (univ. of Phoenix) ALEX Automated Labor Exchange (IBM) ALGOL ALGOrithmic Language ALMMRS Automated Land & Mineral Records System ALMRS Automated Land & Mineral Records System ALOHA (a packet transmission protocol) ALP Agreement for IBM Licensed Programs ALP Assembler Language Programming ALPS Automated Library Processing Service ALPS Advanced Loan Processsing System ALPS Associated Logic Parallel System ALS Advanced Legal Software ALSN ADA Language System -Navy ALU Arithmetic Logic Unit AM Amplitude Modulation AM Administrative Management AM-DSB Amplitude Modulation-Double SideBand AMC Automatic Modulation Control AMC Automatic Message Counting AMIGO Advanced Messaging In Groups AMIS Audio Message Interface Standard AMOS Advanced Mortage On-line System AMP AMPere AMP/HR AMPere-HouR AMPS Automatic Message Processing System AMR Automatic Message Registering AMR Automated Management Reports AMRD Automatic Message Routing Device AMS Archival Management System AMS Access Methods Services AMSM Access Methods Services Macros AMSSB Audio Modulation Single SideBand AMSU Access Methods Services Utilities AN/UDC Army/Navy Universal Digital Computer ANACOM ANAlog COMputer ANATRON ANAlog TRaNsistOr ANG Advanced Networking Group ANI Automatic Number Identification ANMP Account Network Management Program ANS American National Standard ANT Active Name Table AO Amplifier Output AO AMPL And/Or AMPLifier AOC Automatic Output Control AOS Add Or Subtract AOS Automated Office System AOSP Automatic Operating & Scheduling Program AP Applications Program AP Attached Processor APA All Points Addressable APAR Authorized Program Analysis Report APC Advanced Professional Computer APC Automatic Phase Control APD Angular Position Digitizer APEC Automated Procedures for Engineering Consultants APF Advanced Printer Functions APG Application Program Generator APG Automatic Priority Grouping API All Purpose Interface API Application Program Interface APL A Programming Language APL Algorithm Programming Language APOTA Automatic POsitioning Telemetering Antenna APP Auxiliary Power Plant APPC Advanced Program-to-Program Communications APS Alphanumeric Photocomposer System APSE ADA Programming Support Environment APT Automatically Programmed Tool APT Automatic Picture Transmission APT All-Purpose Terminal APTS Automatic Picture Transmission System APUHS Automatic Program Unit APULS Automatic Program Unit AQL Acceptance Quality Level ARAM Analog Random Access Memory ARC Attached Resource Computer ARC Adaptor Return Code ARC Automatic Remote Control ARC Automatic Radio Control ARC Automatic Relay Calculator ARCS Advanced Reconfigurable Computer System ARD Advanced Resources Data ARD Advanced Resources Development ARE Advanced Real-time Executive AREP Automated Reliability Estimation Program AREV Advanced REVelation ARL Acceptance Reliability Level ARM Automatic Reel Mounting ARM Automated Records Management ARM Automatic Route Management ARMA Autoregressive Moving Average ARMIS Automated Report Management Information System ARMS Automated Records Management System ARP Address Resolution Protocol ARQ Automatic Retransmission Queue ARQ Automatic ReQuest For Repetition ARR Accounting Rate of Return ARRA Announced Retransmission Random Access ARS Automatic Route Selection ART Active Reference Table ART Automatic Reporting Telephone ART-IM Automated Reasoning Tool for Information Management ARTI Asynchronous Receiver/Transmitter Interface ARU Audio Response Unit AS Application Specialist program (Rolm Company) AS Application System (IBM) AS Administrative Support AS Add/Subtract ASAD Advanced Structured Analysis & Design ASAP As Soon As Possible ASC Automatic Selectivity Control ASC Automatic Synchronized Control ASC Advanced Scientific Computer ASC Advanced Scientific Computer ASCC Automatic Sequence Controlled Calculator ASCII American Standard Code for Information Interchange ASD Automatic Synchronized Discriminator ASDS Accunet Switched Digital Service ASIC Application Specific Integrated Circuit ASIC Application System Information Center ASK Automatic Shift Keying ASL Available Space List ASLT Advanced Solid Logic Technology ASM Auxilliary Storage Manager (IBM) ASM Allocation Strategy Module ASN Average Sample Number ASN.X Abstract Syntax Notion One ASP Auxilliary Storage Pool ASP Automatic Switching Panel ASP Attached Support Processor (IBM) ASP Automatic Servo Plotter ASP Archival Storage Protector (Novell) ASPEN Automated SPeech Exchange Network ASR Auxilliary Storage Save/Restore ASR Automatic Speach Recognition ASR Automatic Send/Receive AST Active Segment Table ASTEX Automated Storage Expert (Legent Corp.) ASV Automatic Self-Verification AT Automatic Ticketing AT Advanced Technology (PC AT) AT&T American Telephone & Telegraph ATD Authorized Terminal Distributor (DEC) ATDM Asynchronous Time-Division Multiplexing ATE ADA Training Environment ATE Automatic Test Equipment ATL Automated Test Library ATL Automated Tape Library ATM Automated Teller Machine ATM Asynchronous Transfer Mode ATM Adobe Type Manager ATMS Administrative Terminal Management System ATMS Advanced Technical Management System (IBM) ATR Automatic Target Recognizer ATR Advanced Technology Printing ATS Automated Telemetry System ATS Administrative Terminal System ATS Automatic Test System ATS Advanced Technical Services (Novell) ATS Apple Terminal Services ATT-IS AT&T Information Systems AUI Attachment Unit Interface AUTOPIC AUTOmatic Personal Identification Code AVC Audio/Visual Connection AVD Alternate Voice/Data AVE Automatic Volume Expansion AWE Advanced Workstation for The Executive AX Automatic Transmission AZERTY European representation of "QWERTY" Keyboard B Block B Bit B Blank B Binary B-O Binary To Octal B-TREE Balanced multiway search TREE BA Binary Add BAC Binary Asymmetrical Channel BACE Basic Automatic Checkout Equipment BADC Binary Asymmetric Dependent Channel BAK Binary Adaptation Kit BAL Basic Assembly Language BALGOL Burroughs ALGebraic cOmpiLer BAM Basic Access Method BAMP Build ADA Main Program BAP Basic Assembly Program BAP Band Amplitude Product BAR Buffer Address Register BAS BASic (file extension) BASE Bank America Systems Engineering BASIC Bank Automated Service Information Center BASIC Basic Automatic Stored Instruction Computer BASIC Beginners All Purpose Symbolic Instruction Code BASIS Burroughs Applied Statistical Inquiry System BASIS Bank Automated Service Information System BAT BATch file (file extension) BBD Bucket Brigade Device BBM Break Before Make BBS Bulletin Board System BC Broadcast Control BC Binary Code BCC Block Check Character BCD Binary Coded Decimal BCDIC Binary Coded Decimal Interchange Code BCFSK Binary Coded Frequency Shift Keying BCH Bose-Chandhuri-Hocquenghem code BCH Binary Coded Hollerith BCI BroadCast Interference BCI Binary Coded Information BCM Basic Control Monitor BCO Binary Coded Octal BCOM Burroughs Computer Output to Microfilm BCP Bype Control Protocol BCPL Bootstrap Combined Programming Language BCPL Basis Combined Programming Language BCRT Bright Cathode Ray Tube BCS Business Communication Systems (IBM) BCU Binary Counting Unit BCW Buffer Control Ward BD Binary Decoder BD Binary Divide BD Binary to Decimal BDAM Basic Direct Access Method (IBM) BDC Binary Decimal Counter BDD Binary to Decimal Decoder BDES Batch Data Exchange Services (IBM) BDH Bearing BDLC Bouroughs Data Link Control BDN Bell Data Network BDOS Basic Disk Operating System BDP Business Data Processing BDU Basic Display Unit BE Band Elimination BEAM Burroughs Electronic Accounting Machine BEAMOS BEam Accessed Metal Oxide Semiconductor BEE Business Efficiency Exhibition BEEF Business & Engineering Enriched Fortran BER Binary Error Rate BER Bit Error Rate BERM Binary Entity-relationship Model BERT Bit Error Rate Test BEST Business Equiment Software Techniques BEST Business Electronic Systems Technique BEST Business Edp Systems Technique BEX Broadside Exchange BFD Basic File Directory BFG Beat-Frequency Generator BFO Beat-Frequency Oscillator BFS Breath First Search BFS Basic File System BH Binary to Hexidecimal BI Blanking Input BI Batch Interactive (IBM) BIB Bus Interface Board BICARSA Billing BICS Burroughs Inventory Control System BIDEC BInary to DECimal converter BIM Beginning-of-Information Marker BIMS Business Inventory Managment System BINAC BInary Northorp Automatic Computer BINAC BINary Automatic Computer BIOS Basic Input-Output System BIPCO Built-In-Place COmponents BIPED Business Education for the disabled BIRS Basic Indexing & Retrieval System BISAM Basic Indexed Sequential Access Method BISINC BInary Synchronous communications BIT Built-In Test BIT Business Information Terminal BIT BInary digiT BIT/SEC BInary digiTs per SECond BITN Bilateral ITerative Network BITNET Because It's Time NETwork BIVAR BIVARiant Function Generator BIX Binary Information eXchange BJF Batch Job Foreground BJM Between Job Monitor BKSP BacKSPace BL BLanking BL BLank BLADE Basic Level Automation of Data through Electronics BLADES Bell Laboratories Automatic DEsign System BLAISE British Library Automated Information SErvice BLERT BLock Error Rate Test BLF Bubble Lattice File BLIS Bell Laboratories Interpretive System BLK BLocK BLKSZE BLocK SiZE BLNK BLaNK BLOPS Billion floating point instructions per Second BLT Basic Language Translator BLU Basic Logic Unit BLU Basic Link Unit BM Buffer Module BMAS Business Management Accounting System BMD BioMeDical BMEWS Ballistic Missle Early Warning System BMIC Bus Master Interface Chip BMP Batch Message Processing Region (IBM) BMS Basic Mapping Support BN Binary Number BNA Boeing Network Architecture BNA Burroughs Network Architecture BNC Bayonet Nut Coupling BNG Branch No Group BNS Binary Number System BO Blinden Ondersteuning (RUN Flagazine) BO Beat Oscillator BOI Branch Output Interrupt BOLD Bibliographic On-Line Display BOM Basic Oerating Monitor BOMP Bill Of Materials Processor BOP Binary Oriented Protocol BOP Binary Output Program BORAM Block Oriented Random Access Memory BOS Background Operating System BOS Basic Operating System BOSS Business Oriented Software System BOT Beginning Of Tape BP BandPass BPAM Basic Partitioned Access Method (IBM) BPCS Business Planning & Control System BPE Basic Programming Extensions BPF Bandpass Filter BPI Bits Per Inch BPI Bytes Per Inch BPM Batch Processing Monitor BPO British Post Office (British telephone system) BPS Basic Programming System BPS Bits Per Second BPSK Binary Phase-Shift Keying BPT Bisynch Pass-Through BR Break Request BRADS Business Report Application Development System BRC BRanch Conditional BRD Binary ReaD BRIL Brilliance Rate multIpLier BRS Break Request Signal BRU Branch Unconditional BS Business System BS Branch Standard BS Binary Subtrace BSAM Basic Sequential Access Method BSC Binary Synchronous Communication BSC Binary Symmetric Channel BSCN Bit SCaN BSD Berkeley Software Distribution BSDC Binary Symmetric Dependent Channel BSE Basic Service Element BSN Back-end Storage Network BSP Business Systems Planning BSP Burroughs Scientific Processor BST Beam Switching Tube BSX2 Business System X2 BSY BuSY BT British Telecom BTAM Baisc Terminal Access Method BTAM Basic Tecommunications Access Method BTD Binary To Decimal BTD Bijzonder Tellende Diensten BTDL Basic Transient Diode Logic BTEQ Basic Teradata Query BTL Beginning Tape Label BTS Batch Terminal Simulator (IMS) BTS Burster-Trimmer-Stacker BTSP BooTStraP BTSS Basic Time Sharing System BTST Busy Tone Start Lead BTU Basic Transmission Unit BTU British Thermal Unit BUF BUFfer BUIC Back Up Interceptor Control BW BandWidth BWR BandWidth Ratio BYCYNC BInary SYNchronous Communication BYP BYPass character C Computer C Centigrade C Compute C Character C Celcius C Control C (a programming language) C&A Computers & Automation C&C Command & Control C&SM Communications & Systems Management C&SM Communications & System Management C/M Communication Multiplexer C/N Carrier to Noise C/SCSS Cost/Schedule Control SystemS criteria CA Computers & Automation CA Computer Aided CA Computer Assisted CAA Computer-Aided Accounting CAAL Computer-Aided Adult Learning CACS Computer Assisted Collection System CAD Computer-Aided Design CAD Computer Access Device CAD Computer-Applications Digest CADAM Computer-graphics Augmented Design And Manufacturing CADAR Computer-Aided Design CADD Computer-Aided Design Drafting CADEP Computer-Aided Design Experimental Transistor CADET Computer-Aided Design Experimental Translator CADETS Classroom-Aided Dynamic Educational Time-sharin CADIC Computer-Aided Design of Integrated Circuits CADMAC Computer-Aided Document Management And Control CADSS Combined Analog-Digital Systems Simulator CAE Computer-Aided Education CAE Computer-Aided Engineering CAE Common Application Environment CAF Communications Alerting Facility CAFE Computer-Aided Film Editor CAFS Content Addressable File Store CAI Computer-Aided Instruction CAIS Common ADA Interface Standard CAL Conversational Algebraic Language CAL Computer-Aided Learning CALR Computer-Aided Legal Research CALS Computer-Aided Acquisition & Logistics Support CALTECH CALifornia institute of TECHnology CAM Computer-Aided Manufacturing CAM Content Addressable Memory CAM Computer-Aided Makeup CAM Central Access Memory CAMA Centralized Automatic Message Accounting CAMAC Computer Automated Measurement And Control CAMP Computer-Aided Mask Preparation CAN Computer Architecture News CANTRAN CANcell TRANsmission CAP Computer-Aided Purchasing CAP Computer-Aided Production CAP Complimentary Application Program CAP Computer-Aided Publishing CAPS Cogent Advances Platform System (Young Co.) CAPS Compugraphic Automated Publishing System CAR Computer-Aided search & Retrieval CAR Check Authorization Record CARAM Content Addressable Random Access Memory CARE Computer Aided Reliability Estimation CARR CARRier CAS Computerized Authorization System CAS Computer Assisted System CAS Communications Application Specific CASE Computer Aided Software Engineering CASE Computer Aided Systems Engineering CASL Crosstalk Applications Script Language (DEC) CASM Communications And System Management (IBM) CASS Common Address Space Section CAT Computer-Aided Tomography CAT Compile And Test CAT Computer-Aided Thinking CAT Computer-Aided Transcription CAT Computer-Aided Teaching CAT Computer-Aided Testing CATI Computer Assisted Telephone Interviewing CATNYP CATalog of the New York Public library CATS Computer-Aided Training System CATT Controlled Avalanche Transit Time CATV CAble TeleVision CAUSE College And University System Exchange CAV Computer-Aided Video CAW Channel Address Word CAX Community Automatic eXchange CBBS Computerized Bulletin Board System CBC Cipher Block Chaining CBCT Customer-Bank Communications Terminal CBE Computer-Based Education CBG Color Business Graphics CBI Computer Based Instruction CBI Compound Batch Identification CBIPO Custom-Built Installation Process Offering CBMS Computer Based Mail System CBMS Computer Based Message System CBT Computer Based Terminal CBT Computer Based Training CBX Computerized private Branch eXchange CC Central Computer CC Closed Circuit CC Carriage Control CC Control language CC Condition Code CC Card Column CCA Common Communications Adapter CCB Channel Control Block CCC Change Configuration Control CCD Complementary Coded Decimal CCD Charged Coupled Device CCDN Corporate Consolidated Data Network CCF Controller Communications Facility CCF Communications Control Field CCH Channel-Check Handler CCHS Cylinder-Cylinder-Head-Sector (harddiscs) CCIS Common Channel Interoffice Signaling CCITT Comité Consultatif International Télégr. et Téléph. CCL Communications Control Language CCL Common Carrier Line CCLP Common Carrier Line Pool CCM Communications Control Mode CCP Certified Computer Programmer CCP Character Count Protocol CCP Character Controlled Protocol CCPT Controller Creation Parameter Table CCR Central Control Room CCS Conversational Compiling System CCS Continuous Commercial System CCS Continuous Commercial Service CCS Continuous Composit Servo CCS Common Communications Support CCSA Common Control Switching Arrangement CCT Custom Computer Technology CCT CirCuiT CCU Central Control Unit CCU Communications Control Unit CCW Channel Command Word (IBM) CCW Counter-ClockWise CD CarD CD Compact Disk CD-I Compact Disc Interactive CD-RTOS Compact Disk Real Time Operating System CD/ROM Compact Disk Read Only Memory CD/WORM Compact Disk / Write Once Read Many times CDA Compound Document Architecture CDC Code Directing Character CDCCP Control Data Communications Control Procedure CDCE Central Data Conversion Equipment CDD Common Data Dictionary CDE Certificate In Data Education CDE Certified Data Educator CDF Communications Data Field CDH Command & Data Handling CDI Collector Diffused Isolation CDK Channel Data Check CDL Computer Design Language CDL Computer Description Language CDMS Crystal Document Management System CDOS Concurrent Disk Operating System CDP Certificate in Data Processing CDP Communication Data Processor CDP Checkout Data Processor CDP Certified Data Processor CDR Call Detail Recording CDRM Cross-Domain Resource Manager CDROM Compact Disc Read Only Memory CDS Centralized Data System CDT Control Data Terminal CDTS Centralized Digital Telecommunications System CDU Central Display Unit CDU Coolant Distribution Unit CE Channel End CE Customer Engineer CE Computer Engineer CECP County Extended Code Page CEGL Cause-Effect Graph Language CEI Comparably Efficient Interconnector CEI Computer Extended Instruction CEO Comprehensive Electronic Office CEO Chief Executive Officer CEO Computer Enhancement Option CEP Corporate Electronic Publishing CEP Circular Error Probability CEPA Civil Engineering Programming Applications CEPS Corporate Electronic Publishing Show CERT Computer Emergency Response Team CESD Composit External Symbol Dictionary CETI Continuously Executing Transfer Interface CF Conversion Factor CF Central File CF Certainty Factor CF Count Forward CF KEY Command Function KEY CFB Cipher FeedBack CFD Computational Fluid Dynamics CFIA Component Failure Impact Analysis CFO Chief Financial Officer CFP Creation Facilities Program CFR Catastrophic Failure Rate CFS Continuous Forms Stacker CFU Create Function Unit CG Computer Graphics CG Channel Grant CG-HI Channel Grant HIgh CG-LO Current Group LOw CGA Color Graphics Adapter CGI Current Group Indicator CGI Computer Graphics Interface CGI Color Graphics Processing CGM Computer Graphics Metafile CGU Character Generation Utility CHAIN Computerized Head-end Access Information Network CHAR CHARacter CHDL Computer Hardware Description Language CHIL Current Hogging Injection Logic CHIPS Clearing House Inter-Payments System CHK CHecK CHKDSK CHecK DiSK (MS-DOS Command) CI Circuit Interruptor CI Call Indicator CI Control Interval CIA Computer Interface Adaptor CICP Customer Interrupt Control Program CICS Customer Information Control System (IBM) CICS SPM CICS Source Program Maintenance online CICSPARS CICS Performance Analysis Reporting System CID Communications IDentifier CIDA Channel Indirect Data Addressing CIDF Control Information Definition Field CIDR Classless Inter-Domain Routing CIE Chief Information Engineer CIF Central Integration Facility CIF Central Index File CIG Computer Image Generation CIM Computer-Integrated Manufacturing CIM Critical Index Management CIM Computer Input from Microfilm CINDI Central INformation DIspatch CIO Chief Information Officer CIO Central Input/Output multiplexer CIR CIRcuit CIR Committed Information Rate CIS Computer Information Service CISC Complex Instruction Set Computer CIT Computer Integrated Telephony CIT Call In Time CITS Central Integrated Test System CIU Cable Interface Unit CIU Computer Interface Unit CK ChecK CKD Count Key Device CL Conversion Loss CL Control Language CLA Communication Line Adapters CLASS Consular Lookout And Support System CLASS Custom Local Area Signal Service CLAT Communication Line Adapters for Teletypewriters CLCS Current LogiC CLD CaLleD line CLG CaLlinG line CLIP Compiler Language for Information Processing CLNP ConnectionLess Network Protocol CLR Computer Language Recorded CLS Computerized Litigation Support CLS Computer Letter Service CLSR Computer Law Service Reporter CLT Computer Line Terminal CLT Computer Language Translated CLU Central Logic Unit CM Computer Module CM Communication CM Control Mark CM Communication Multiplexer CMAP Command Monitor/Analysis Package CMC Communicating Mag Card CMCT CoMmuniCaTe CMD CoMmanD CMF Cross Modulation Factor CMI Computer-Managed Instruction CMIP Common Management Information Protocol CMIS Common Management Information Services CML Current Mode Logic CMMRR CoMmand Mode Rejection Ratio CMMS Computerized Maintenance Management System CMOL CMip over logical link ContrOl CMOS Complementary Metal Oxide Semiconductor CMOT Common Management information protocol Over TCP/IP CMP Cooperative Marketing Program CMP Computational CMPLX CoMPLeX CMPTR CoMPuTeR CMR Communcations Moon Relay CMR Common Mode Rejection CMS Communications Management Series CMS Conversational Monitor System (IBM) CMV Common Mode Voltage CMYB Cyan-Magenta-Yellow-Black CNC Computerized Numeric Control CNF Conjunctive Normal Form CNI Communications Navigation-Identification CNL Circuit Net Loss CNM Communication Network Management (IBM) CNMA Communications Network for Management Associations CNS Communications Network Services CNTRL CoNTRoL CO LAN Central Office Local Area Network CO/NO Current Operator-Next Operator COAP Certified Office Automation Professional COAX COAXial cable COB Complementary Offset Binary COBIS COmputer Based Instruction System COBIT Central Office Based Intelligent Transport COBOL COmmon Business Oriented Language COC Coded Optical Character CODEC COder-DECoder CODIC COmputer-DIrected Communications COED Computer Operated Electronics Display COEP Customer Originated Electronic Payment COGO COordinate GeOmetry COGS Cost Of Goods Sold COHO COHerent Oscillator COIN Complete Operating INformation COL Computer Oriented Language COLT Computerized On-Line Testing COLT COmmunications Line Terminator COLT COmputer Linked Text COM COMmand File (file Extension, MS DOS) COM Computer Output on Microfilm COMAL COMmon Algorithmic Language COML COMmercial Language COMM COMMunication COMSAT COMmunications SATellite COMSEC COMmunications SECurity CON CONtrol CONS CONSole CONS Carrier Operated Noise Suppression CONSORT CONversational System with On-line Remote Terminals CONST CONSTant CONT CONTinue CONT CONTinuous COP Coefficient Of Performance COP Computer Optimization Package COPE Communications Oriented Processing Equipment COR CORrect CORR CORRespondence COS Cray Operating System COS Call Originate Status COSMIC COmputer Software Managment & Information Center COSMON Component Open/Short MONitor COST COoperation Scientifique et Technique CP Central Processor CP Control Program CP Clock Phase CP Card Punch CP Control Panel CP Color Printer CP Copy Protected CP Control Point CP ComPuter CP/EM CP/M EMulator (operating system) CP/M Control Program for Microprocessors CPC Ceramic-wafer Printed Circuit CPC Computer Process Control CPC Computer Power Center CPC Compact Personal Computer CPC Computer Program Component CPC Card Programmed Calculator CPD Cards Per Day CPD Consolidated Programming Document CPDD Command Post Digital Display CPDS Computer Program Design Specification CPE Customer Premises Equipment CPE Central Processing Equipment CPE Central Programmer & Evaluator CPF Control Program Facility CPF Computer Program Facility (IBM) CPFF Cost Plus Fixed Fee CPH Characters Per Hour CPI Common Programming Interface CPI Computer-to-Pbx Interface CPI Character Per Inch CPIF Cost Plus Incentive Fee CPIP Control Protocol / Internet Protocol CPL Computer Program Library CPL Combined Programming Language CPL Cooperative Processing Language CPL Conversational Programming Language CPLD CouPLeD CPLMT ComPLeMenT CPM Cards Per Minute CPM Critical Path Method CPM Control Program Monitor CPM Copies Per Minute CPNI Customer Proprietary Network Information CPO Code Practice Oscillator CPODA Contention Priority-Oriented Demand Assignment CPOL Communications Procedure-Oriented Language CPP Card Punching Printer CPR Cam Plate Readout CPS Cycles Per Second CPS Computer Power System CPS Clustered Printer Sharer CPS Central Processing System CPS Conversational Programming System (IBM) CPS Communications Processor System CPS Characters Per Second CPSS Common Programming Support System CPT Critical Path Technique CPTA Computer Programming & Testing Activity CPTY CaPaciTY CPU Central Processing Unit CPX Capacity Planning eXtended CPY CoPY CQCF Cics Queue Command Facility CQMS Circuit Quality Monitoring System CQT Correct ("CorreQT") CR Call Request CR Count Reverse CR Command Register CR Card Reader CR Carriage Return CR Control Reverse CR Control Relay CR CRedit CRAM Card Random Access Memory CRC Cyclic Redundancy Code CRC Carriage Return Contact CRC Cyclic Redundancy Check CRF Control Relay Forward CRFTR CarrieR Frequency Telephone Repeater CRJE Conversational Remote Job Entry CRM Central Recovery Module CRMR Continuous-Reading Meter Relay CRO Cathode-Ray Oscillograph CROM Control Read Only Memory CRP Capacity Requirements Planning CRTU Combined Recieving & Transmitting Unit CRYPTO CRYPTOgraphy CRYPTO CRYPTOgraph CS Customer Service CS Channel Status CS Controlled Signal CS Control Signal CS Control Set CS Check Sorter CS Cycles Shift CS Chip Select CS Computer Science CSA Computer Systems Analyst CSA Common Services Area CSB Complementary Straight Binary CSD Constant Speed Drive CSDC Circuit Switched Digital Capability CSDS Circuit-switched Digital Services CSE Computer Science & Engineering CSE Control Systems Engineering CSECT Control SECTion CSF Critical Success Factor CSFT Critical Success Factor Team CSL Computer Sensitive Language CSM Continuous Sheet Memory CSMA/CD Carrier-Sense Multiple Access Collision Detection CSMP Continuous System Modeling Program CSO Chained Sequential Operation CSP Commercial Subroutine Package CSP Cross-System Product (IBM) CSP Certified Systems Professional CSP/AD Cross-System Product/Application Development CSP/AE Cross-System Product/Application Execution CSP/Q Cross-System Product/Query CSSB Compatible Single Sideband CSSI Computer Software Services Industry CSSL Continuous System Simulation Language CST Channel Status Table CSTU Currently Signed-on Terminal User CSW Channel Status Word CT CounT CT CounTer CT Current Transformer CT Channel Terminator CT Computer Tomography CT/ST Cassette Tape/Selectric Typewriter CTA Channel & Traffic control Agency CTAK Cipher Text Auto Key CTC Counter Timer Circuit CTC Channel-To-Channel CTCA Channel-To-Channel Adapter CTPA Coax to Twisted Pair Adapter CTR Conformance Test Report CTRL ConTRoL CTS Cellular Telephone Service CTS Clear To Send CTSS Compatible Time-Sharing System CU Control Unit CUA Common User Access CUCB Control Unit Control Blocks CUG Closed User Group CUMREC College & University Machine RECord conference CUSP Common USer Program CUT Control Unit Terminal CUTS Cassette User Tape System CV Constant Voltage CVE Centrale Verwerkings Eenheid (Zie CPU) CVSD Continous Variable Slope Delta modulation CVT Constant Voltage Transformer CW Control Word CWP Communicating Word Processors CX Character transmission CXI Common X Interface D Digital D Display D Density D Doubleword D Digit D Decimal D Drum D&S Display & Storage D-F Direct Flow D/R Direct or Reverse D/T Disk/Tape DA Distribution Amendment (IBM) DA Data Available DA Data Acquisition DA Direct Answer DA Decimal Add DA Data Administration DA Data Automation DA Data Administrator DA Discrete Address DAA Data Authentication Algorithm DAA Data Access Arrangement DAC Data Acquisition & Control DAC Digital to Analog Converter DACC Direct Access Communication Channel DACS Digital Access Cross-connect System DACU Device Attachment Control Unit (IBM) DAD Device Action Diagram DADS Digitally Assisted Dispatching System DAL Data Access Language (Apple) DAL Data Access Line DAM Direct Access Method (DAM) DAMA Demand Assignment Multiple Access DAME Data Acquisition & Monitoring Equipment DAMPS Data Acquisition MultiProgramming System DAP Distributed Array Processor DAP Data Access Protocol DAPS Direct Access Programming System DAR Direct Access Register DART Data Analysis Recording Tape DART Daily Automatic Rescheduling Technique DAS Digital Attenuator System DAS Data Acquisition System DAS Dual Attached Station DASD Direct Access Storage Device DAT Digital Audio Tape DAT Dynamic Address Translation DATACOM Data Communications DAV DAta Valid DAV Data AVailable DAVAR Dealer Authorized Value-Added Retailer DAVE Data Addition Verification & Editing DB Data Base DB DeciBel DB/DC DataBase/Data Communications DB2 DataBase 2 DBA DataBase Administrator DBA DataBase Administration DBC DataBase Computer DBD DataBase Description DBDA DataBase Design Aids DBDC DataBase/Data Communications DBM DataBase Management DBM DataBase Manger DBMS DataBase Management System DBP DataBase Processor DBRC DataBase Recovery Control DBS Direct Broadcast Satellite DBS DataBase Service DBTG DataBase Task Group DC Data Channel DC Direct Current DC Disc Controller DC Display Console DC Data Communications DC Define Constant DC Directional Coupler DCA Document Content Architecture DCA Digital Communication Architecture DCAA Dual-Call Auto-Answer DCB Define Control Block DCB Disk Co-processor Board DCB Data Control Block DCBD Define Control Block Dummy DCC Digital Compact Cassette (Philips) DCC Display Computer Complex DCC Data Communications Channel DCCU Data Communications Control Unit DCD Data Carrier Detect DCE Distributed Computing Environment DCE Data Communications Equipment DCF Discounted Cash Flow DCF Document Composition Facility DCF Distributed Communications Facilty DCF Document Control Facility (IBM) DCI Data Communications Interrogation DCL Data Communications Link DCM Display Control Module (IBM) DCM Data Communications Multiplexer DCM Directory Control Module DCMS Data Capture & Management System (IBM) DCMT DeCreMenT DCMT DoCuMenT DCN Data Control Network DCO Digital Central Office DCO Digitally Controlled Oscillator DCP Data Communications Processor DCP Data Communication Processor DCPS Digitally Controlled Power Source DCPS Digitally Controlled Power Source DCPS Differentially Coherent Phase-Shift keying DCPSK Differentially Coherent Phase-Shift Keying DCR Data Conversion Reciever DCS Distributed Computing System DCS Data Center Services (IBM) DCS Direct Coupled System DCS Distributed Communications System DCS Digital Composition System DCTL Direct Coupled Transistor Logic DCU Decade Counting Unit DCU Decimal Counting Unit DCUTL Direct Coupled Unipolar Transistor Logic DCW Data Control Words DCW Data Communication Write DCW Define Constant with Wordmark DCWV Direct Current Working Volts DD Decimal Divide DD Digital Display DD Double Density DD Drum Demand DD Data Directory DD Data Definition DD/D Data Dictionary Directory DDA Digital Differenial Analyzer DDAS Digital Data Acquisition System DDBMS Distributed Database Management System DDC Direct Digital Computer DDC Digital Display Converter DDC Data Distribution Center DDC Digital Data Converter DDCE Digital Data Conversion Equipment DDCMP Digital Data Communications Message Protocol DDD Direct Distance Dialing DDE Dynamic Data Exchange DDG Digital Display Generator DDL Data Definition Language DDL Data Description Language DDL Document Description Language DDN Defense Data Network DDP Digital Data Processor DDP Distributed Data Processing DDPS Digital Data Processing System DDRP Dial Dictation Relay Panel DDS Digital Data Storage DDS Digital Display Scope DDS Direct Dial Service DDS Dataphone Digital Service (AT&T) DDSA Derived-design Strategic Activities DDT Digital Data Transmitter DDT Dynamic Debugging Technique DE Device End DE Display Element DE Decision Element DE Dictation Equipment DE-ME-D DEcoding MEmory Drive DEC DECision DEC DECimal DECIT DECimal digIT DECNET Digital Equipment Corporation NETwork DECR DECRement DED Double Error Detection DED Data Element Dictionary DED/D Data Element Dictionary/Directory DEFT Dynamic Error/Free Transmission DEL DELete DEL DELay DEM DEModulator DEMF Display Exception Monitoring Facility (IBM) DEMO DEMOnstration DEMOD DEMODulator DENS DENSity DEPSK Differential-Encoded Phase Shift Keying DES Data Encryption Standard DES Differential Equasion Solver DES Digital Expansion System DES Data Encription Standard DESNC Digital Ethernet Security control DETAB DEcision TABles DEU Data Exchange Unit DF Describing Function DF Dissipation Factor DFA Digital Flaw Analysis DFC Digital File Check DFCU Disk File Control Unit DFDS Data Facility Device Support (IBM) DFDSS Data Facility Data Set Services DFEF Data Facility Extended Function DFG Discrete Frequency Generator DFG Diode Function Generator DFHSM Data Facility Hierarchial Storage Manager DFP Data Facility Product (IBM) DFPE Data Flow Processing Element DFR Double Frequency Recording DFR Disk File Read DFS Depth First Search DFSORT Data Facility SORT DFSU Disk File Storage Unit DFT Discrete Fourier Transform DFT Disk Fault Tollerance DFT Distributed Function Terminal DFU Data File Utility DFW Disk File Write DG Diode Gate DG Double Groove DG Differential Generator DGIS Direct Graphics Interface Standard DGNL DiaGoNaL DGS Data Gathering System DGT DiGiT DHE Data Handling Equipment DI Data Interface DI Data Input DI Digital Input DIA Document Interchange Architecture DIAL Drum interrogation DIAL Direct Information Access Line DIAL Display Interactive Assembly Language DIAL Data for Interchange at the Application Level DIALOG (business) DIANE DIrect Access Network Europe DIAS Dynamic Inventory Analysis System DIBOL Digital Integrated Business System (...) DIBS Digital Integrated Business System DIC Data Input Check DICT DICTionary DID Direct Inward Dialing DID Datamation Industry Directory DID Digital Information Display DIDON DIffusion de DONnes DIF Document Interchange Format DIF Data Interchange Facility DIF Display Information Facility (IBM) DIGEX Disabled Interest Group Electronic eXchange DIGICOM DIGItal COMmunications system DIGRM DIGit/Record Mark DIGRMGM DIGit/Record Mark Group/Mark DIIC Dielectrically Isolated Integrated Circuit DIM Device Interface Module DIN Deutsche Industrie Norm DIOB Digital Input/Output Buffer DIOF Display Input/Output Facility (IBM) DIP Dual-In-line Pin DIP Display Information Processor DIP Dual-In-line Package DIS Draft International Standard (ISO) DISA Direct Inward System Access DISAC DIgital Simulator And Computer DISCON Defense Integrated Secure COmmunications Network DISOS DIStributed Office Support system (IBM) DIT Directory Information Tree DITTO Data Interfile Transfer (...) DIV DIVider DIVA Digital Input Voice Answer-back DJIRS Dow Jones Information Retrieval System DK Delay Line DL Data Link DL Diode Logic DL/X Data Language One DLC Duplex Line Control DLC Data Link Control DLC Digital Loop Carrier DLCC Data Link Control Chip DLCF Data Link Control Field DLE Data-Line Escape DLE Data-Link Escape DLF Document Library Facility (IBM) DLL Dynamic Link Library (file Extension) DLL Dynamic Link Library DLO Data Link Occupied DLS Device Level Selection DLT Data Loop Transceiver DLY DeLaY DLYD DeLaYeD DM Data Manager DM Delta Modulation DM Data Model DM Data Management DMA Direct Memory Access DMAS Distributed Management Accounting System (IBM) DMC Digital Microcircuit DMC Datapro MacIntosh Consultant DME Direct Machine Environment DME Distance Measuring Equipment DME Distance Measuring Equipment DMED Digital Message Entry Device DMEP Data Network Modified Emulator Program DMF Digital Matched Filters DMF Distributed Management Facility DMI Digital Multiplexed Interface DML Data Manipulation Language DMM Digital Multi-Meter DMOS Discrete Metal Oxide Semiconductor DMPL Digital Microprocessor Processing Language DMS Discrete Memoryless Source DMS Development Management System DMS Data Management System DMS II Data Management System II DMSS Data Multiplex SubSystem DMUX DeMUltipleX DN Decimal Number DNA Dynamic Network Architecture (Northern Telecom) DNA Digital Network Architecture DNC Direct Numerical Control DNCS Distributed Network Control System DNI Desktop Network Interface (Cabletron) DO Digital Output DO Defense Order DO/IT Digital Output/Input Translator DOC Data Optimizing Computer DOC DOCument DOC Direct Operating Cost DOCS Disk Oriented Computer System DOCS Distributed Office Communication System (IBM) DOCUS Display Oriented Computer Usage System DOL Display Oriented Language DOMSAT DOMestic SATellite service DOPIC Document Of Programs In Core DOPS Digital Optical Projection System DOR Digital Optical Recording DORIS Diognostic Oriented Rockwell Intelligent System DORIS Direct Order Recording & Invoicing System DOS Digital Operating System DOS Disk Operating System DOS/VS Disk Operating System/Virtual Storage (IBM) DOS/VSE Disk Operating System/Virtual Storage Extended DOSF Distributed Office Support Facility (IBM) DOV Data Over Voice DP Dynamic Programming DP Data Processing DP Draft Proposal DP Disk Pack DP Digit Present DP Dial Pulsing DP Dial Port DPA Demand Protocol Architecture DPC Direct Program Control DPC Data Processing Center DPCM Data Pulse Code Modulation DPCX Distributed Processing Control eXecutive (IBM) DPD Data Processing Department DPD Data Processing Division DPDT Double-Pole (...) DPE Data Processing Equipment DPEX Distributed Processing EXecutive operating system DPF Data Processing Facility DPG Data Processing Group DPG Digital Patern Generator DPI Dots Per Inch DPI Data Processing Installation DPM Documents Per Minute DPM Digital Pattern Meter DPM Data Processing Machine DPMS Data Project Management System DPNSS Digital Private Network Signalling System DPPX Distributed Processing Programming eXecutive (IBM) DPR Ditigal PResent DPR Dynamic Path Reconnect DPS Data Processing Service DPS Data Processing System DPS Data Processing Subsystem DPS Document Processing System DPS Distributed Presentations Services (IBM) DPSK Differential Phase-Shift Keying DPSS Data Processing SubSystem DPST Double-Pole (...) DPU Data Processing Unit DQC Data Quality Control DQDB Distributed Queue Data Base DQM Data Quality Monitors DR DRum DR Data Recorder DR DRive DR Data Reduction DR Digital Resolver DR&E Defense Research & Engineering DRAM Dynamic Random Access Memory DRAW Direct Read After Write DRC Data Reduction Compiler DRCS Dynamically Redefined Character Sets DRDA Distributed Relational Data Architecture (IBM) DRI Digital Reduction Interpreter DRM Digital Radio Meters DRO Destructive ReadOut DRO Digital ReadOut DROS Disk Resident Operating System DRS Data Rate Selector DRT Diode Recovery Tester DRT Data Recovery Tester DRV Data Recovery Vehicle DS Drum Storage DS Define Symbol DS Decimal Subtract DS Define Storage DS Disk Storage DS Device Selector DS Data Synchronization DS Double Sided DS Data Scanning DS Data Set DS/DD Double-Sided / Double Density (diskettes) DS/SD Double-Sided / Single Density (diskettes) DSA Define Symbol Address DSA Distributed Systems Architecture DSAS Data Set Analysis System DSB Double SideBand DSC Direct Satelite Communications DSC Document Service Center DSC Data Stream Compatability (IBM) DSCB Data Set Control Block DSCS Desk Side Computer System DSDS Dataphone Switched Digital Service DSE Data Systems Engineering DSE Data Storage Equipment DSE Data Switching Equipment DSE Distributed Systems Environment DSGN DeSiGNation DSI Digital Speech Interpolation DSL Digital Simulation Language DSL Data Simulation Language DSL Data Set Language DSL Data Set Label DSLC Data Subscriber Line Carrier DSLO Distributed System License Option (IBM) DSM Discrete Source with Memory DSM Device Strategy Module DSN Data System News DSN Distributed Systems Network DSN Data Set Name DSNX Distributed System Node eXecutive (IBM) DSO Data Security Officer DSORG Data Set ORGanization DSP Digital Signal Processing DSR Data Set Ready DSR Digital Storage Relay DSR Digital Stepping Recorder DSS Decision Support System DSS Direct Station Selection DSU Disk Storage Unit DSU Data Service Unit DSU Device Switching Unit DSU Digital Synchronization Unit DSU/CSU Data Servicing Unit/Channel Servicing Unit DSW Device Status Word DSW Data Status Word DSX Distributed System eXecutive (IBM) DSX-X Digital Signal Cross-connect ("X" = cross) DT Down Time DT Data Translator DT Digital Technique DT Data Transmission DTC-III Desktop Tactical Computer - III (NAVY) DTDM Digital Terminal Data Module DTE Data Terminal Equipment DTF Document Transmission Facility (IBM) DTF Define The File DTG Data Time Group DTIB Decision Table Information Bulletin DTID Design & Test Integration Division (Tektronix) DTL Diode-Transistor Logic DTLC Dialog Tag Language Compiler DTM Delay Time Multiplier DTMS Database & Transaction Management System (IBM) DTO Dollar Trade-Off DTP Distributed Transaction Processing DTP Directory Tape Processor DTR Data Terminal Ready DTR Data Terminal Reader DTR Digital Telemetering Register DTR Daily Transaction Reporting DTS Digital Tandem Switch DTS Data Transmission System DTTU Data Transmission Terminal Unit DTU Digital Tape Unit DTUTF Digital Tape Unit Tape Facility DUAL Dynamic Universal Assembly Language DUNS Data Universal Numbering System DUT Device Under Test DUV Data Under Voice DVI Digital Video Interactive DVI Digital Voice Interactive DVST Direct Viewing Storage Tube DVX Digital Voice eXchange DW Data Word DW DisplayWrite (IBM) DW/3 DisplayWrite/3 (IBM) DW/36 DisplayWrite/36 (IBM) DW/37. DisplayWrite/37. (IBM) DW/4 DisplayWrite/4 (IBM) DX DupleX DX Document transmission (eXchange) DX Distance DXAM Distributed indeXed Access Method DXC Data eXchange Control DXT Data eXtract DYNANA DYNAmic ANAlyzer DYNSAR DYNamic Systems AnalyzeR DYSAC DigitallY Simulated Analog Computer DYSTAL DYnamic STorage Allocation Language E Enable E Error E Electronic E Element E Electrical E&M Ear & Mouth (receive & transmit mechanisms) E-COM Electronic Computer Originated Mail E-MAIL Electronic Mail E/M Electro/Mechanical EA Effective Address EAC Electronic Access Control EAG Equipment Advisory Group EAM Electrical Accounting Machine EAN European Accounting Machine EAN European Article Numbering Code EARN European Academic Research Network EARN European Academic Research Network EAROM Electrically Alterable Read Only Memory EAS Electronic Accounting System EAS Extended Area Service EBCDIC Extended Binary Coded Decimal Interchange Code EBI Equivalent Background Input EBPA Electron Beam Parametric Amplifier EBR Electronic Beam Recording EC Engineering Change EC Error Checking EC Electronic Calculators EC Error Correcting ECA Engineering Change Assessment ECA Electronics & Computer Assembly ECAD Electrical Computer Aided Design ECAP Electronic Circuit Analysis Program ECB Event Control Block ECB Electronic Claims Billing ECC Emitter-Coupled Circuits ECC Electronic Computer Concepts ECC Error Correcting Code ECC Error Correction Capability ECCM Electronic Counter-Counter Measures ECCR Electronic Cash & Credit Register ECD Electro-Chromic Display ECDC ElectroChemical Diffused Collector transistor ECF Enhanced Connectivity Facility (IBM) ECL Equipment Component List ECL Emitter Coupled Logic ECLIPSE Electronic CLIPping SErvice ECLO Emitter-Coupled Logic Operator ECM Electronic CounterMeasures ECME Electronic CounterMeasures Equipment ECN Electronic Change Notice ECO Engineering Change Order ECOS Extended Communications Operating System ECP Executive Control Program ECP Engineering Change Proposal ECS Escape Character (???) ECS Executive Control System ECS Extended Core Storage ECTL Emitter Coupled Transistor Logic ECX Electronically Controlled telephone eXchange ED External Device ED Electrical Differential ED Error Detecting EDA Electronic Differential Analyzer EDA Exploratory Data Analysis EDAC Error Detection And Correction EDACS Environmental Data Access And Control System EDC Error Detection and Correction EDC Electronic Desk Calculator EDC Electronic Digital Computer EDCOM EDitor and COMpiler EDCS Engineering Document Control System EDCW External Device Control Word EDE External Document Exchange EDF Execution Diagnostic Facility EDGAR Electronic Data Gathering Analysis and Retrieval EDGE Electronic Data Gathering Equipment EDHE Experimental Data Handling Equipment EDI Electronic Dissemination of Information EDI Electronic Data Interchange EDI Electronic Document Interchange EDIF Electronic Design Interchange Format EDOS Extended Disk Operating System EDP Electronic Data Processing EDPC Electronic Data Processing Center EDPE Electronic Data Processing Equipment EDPEO Electronic Data Processing Equipment Office EDPM Electronic Data Processing Machine EDPS Electronic Data Processing System EDS Exchangeable Disk Storage EDSAC Electronic Delay Storage Automatic Calculator EDU Electronic Display Unit EDVAC Electronic Discrete Variable Automatic Computer EE Electrical Engineer EE External Environment EEMM Epson Expanded Memory Manager EEMS Enhanced Extended Memory System EEPROM Electrically Erasable Programmable ROM EFL Emitter-Follower Logic EFPH Equivalent Full Power Hours EFTS Electronic Funds Transfer System EGA Enhanced Graphics Adaptor EGP Electronic Graphics Processing EHF Extra High Frequency EHLLAPI Enhanced High-Level Language APplIcation EHV Extra High Voltage EIES Electronic Information Exchange System EIP Executive Interface Program EIRP Effective Isotropic-Radiated Power EIS Executive Interface Structure EIS Executive Information System EIS Electronic Information Services EIS End Interruption Sequence EISA Extended Industry Standard Architecture EL Electro Luminescent ELAN Enhanced Local Area Network (SMC) ELD Edge Lighted Display ELD ElectroLuminescent Display ELI Extensible Language One ELIAS Expandible Level Interactive Application System ELINT ELectronic INTelligence ELS Entry Level System EM End of Medium EM Electronic Mail EMA Enterprise Management Architecture EMAIL Electronic mail EMAS Edinburgh MultiAccess System EMC ElectroMagnetic Compatability EME EMergency power Engineering EMI ElectroMagnetic Interference EMI Electro-Mechanical Interference EMIS Educational Management Information System EML Equipment Modification List EMP ElectroMechanical Power EMR Executive Management Responsibility EMR Electro Magnetic Radiation EMS Element Management System EMS Electronic Management System EMS Expanded Memory Specification EMS Electronic Message System EMS Electronic Medical System EMT Electrical Metallic Tubing EMWP Extended-Machine Wait-state Problem-state END END of data ENG Electronic News Gathering ENIAC Electronic Numerical Integrator And Computor ENQ EnQuiry Character ENT ENTry EO Executive Order EOA End Of Address EOB End Of Block EOC End Of Conversation EOD End Of Data EODAD End Of Data ADdress EOE Errors and Omissions Excepted EOF End Of File EOJ End Of Job EOL End Of Life EOL End Of Line EOM End Of Message EON End Of Number EOP End Of Program EOP End Of Output EOQ Economic Order Quantity EOR End Of Record EOR End Of Reel EOR End Of Run EOS Electro-Optical System EOSDIS Earth Observing System Data & Information System EOT End Of Transmission EOT End Of Tape EOV End Of Volume EP End Point EP Electronic Publishing EP End of Program EP Entry Point EP/PLA Extended Provisions/Program License Agreement EPBX Electronic Private Branch eXchange EPC Embedded Print Command EPC Easy Processing Channel EPC Electronic Program Control EPI Electronic Photography and Imaging EPIC Educational Products Information Exchange EPROM Electronically Programmable Read Only Memory EPS Encapsulated Postscript Files (Microsoft) EPS Electronic Publishing Specialist EPSS Experimental Packet Switching System EPU Electrical Power Unit EQ EQuate EQ EQual EQ EQualizer EQP EQuipment EQU EQUal EQU EQUate EQUPMT EQUiPMenT ERA Electronic Reading Automation ERLL Enhanded Run Length Limited ERM Entity-Relationships Model EROM Eraseable Read Only Memory ERR ERRor ERX Electronic Remote switching ES Electronic Storage ES Expert Systems ES-IS End System - Intermediate System ESD Electrostatic Storage Deflection ESDI Enhanced Small Device Interface ESDN Extended Software Defined Network ESDS Entry Sequence Data Set ESE/UM Expert System Environment/Virtual Machine ESF Extended Superframe Format ESI Externally Specified Indexing ESP Electro-Sensitive Programming ESP Early Support Program ESP Enhanced Services Providers ESQL/C Embedded Structured Query Language for "C" ESR Effective Signal Radiated ESS Electronic Switching System ESSU Electronic Selective Switching Unit EST ESTimate ESU ElectroStatic Unit ESW Error Status Word ET Exchange Termination Equipment ET Elapsed Time ET Earth Terminal ET Educational Technology ETA Estimated Time of Arrival ETB End of Transmission Block ETC Electronic Transaction Cycle ETC Estimated Time of Completion ETD Estimated Time of Departure ETIM Elapsed TIMe ETL Ending Tape Label ETN Electronic Tandem Network ETP Electronic Technical Publishing ETP Extended Term Purchase ETS Electronic Telegraphic System ETX End of Text Character EVAL EVALuation EVPI Expected Value of Perfect Information EX EXecute EXAM EXAMine EXCH EXCHange EXCLU EXCLUsive EXCP EXCePt EXCP EXecute Channel Programs EXCP EXecute Channel Program EXD EXternal Device EXE EXEcutable file (file extension MS-DOS) EXEC EXECution EXEC EXECutive EXEC EXECute EXNOR EXclusive-Nor gate EXOR EXclusive-Or Gate EXTND EXTeNDed data transfer EXTSN EXTenSioN F Feedback F Fixed F Frequency F Filter F-F Flip-Flop F/V Frequency to Voltage converter F2 Function Key #2 FA Fully Automatic FA Forced Answer FAC Financial Administrative Control FACE Field Alterable Control Element FACS Flexible Accounting Control System FACT Fully Automatic Compiler-Translator FACT Fully Automatic Cataloging Technique FACT Fully Automatic Compiling Technique FAIS Foreign Affairs Information System FAM Fast Access Memory FAP Financial Analysis Program FAP Fortran Assembly Program FAR Failure Analysis Report FAT File Alloction Table FAX FAcsimile FBA Fixed Block Architecture FBC Fully Buffered Channel FC File Control FC File Conversion FC&A Frequency Control and Analysis FCA Functional Configuration Audit FCB File Control Block FCDR Failure Cause Data Report FCFS First Come (...) FCL Feedback Control Loop FCP File Control Processor FCS Frame Check Sequence FD Full Duplex FD Floppy Disk FD File Description FDAD Floppy Drive high density (Apple) FDC Floppy Disk Controller FDDI Fiber Distributed Data Interface FDM Frequency Division Multiplexer FDOS Fixed Disk Operating System FDP Field Developed Program FDS Full Development System FDX Full DupleX transmission FE Field Engineers FE Framing Error FE Format Effector FE2O3 FErric oxide FEA Finite-Element Analysis FEC Forward Error Correction FED-STD FEDeral STandarD FEP Front End Processor FEP Financial Evaluation Program FERS Federal Employees Retirement System FET Field Effect Transistor FF Form Feed FF Fixed Fee FFS Fast File System FFT Fast Fourier Transform FGND Frame GrouND FHD Fixed-Head-Disk FIFI Floating Input-Floating Output FIFO First In First Out FIG FIGure FIGS FIGure Shift FILO First In Last Out FIPS Federal Information Processing Standards FIRST Fast Interactive Radio System planning Tool FK Function Key FL/X Function Language One FLBIL FLoating-point Binary FLD FieLD FLDEC FLoating-point DECimal FLIH First Level Interrupt Handler FM Frequency Modulation FM File Maintenance FM ForMat FME Frequency Measuring Equipment FMEVA Floating point MEans and VAriance FMFB Frequency Modulation and FeedBack FMS Forms Management System FMS File Management System FMS Fortran Monitor System FMS Finite State Machine FMT ForMaT FOC Fiber Optic Communications FOCAS Field Office Commission Automation System FOCTALK (TM)(Iinformation Builders) FOCus TALK FOIL File Oriented Interpretive Language FOIRL Fiber Optic Inter Repeater Link FOMAU Fiber Optic Media Access Unit FOPT Fiber Optic Photo Transfer FORMAC FORmula MAnipulation Compiler FORTRAN FORmula TRANslator (progam language) FOSDIC Film Optical Sensing Device for Input to Computers FOSE Federal Office Systems Exposition FOUR GL FOURTH Generation Language FP Fixed Point FP File Protect FPAP Floating Point Array Processor FPE FORTRAN Programming Environment FPGA Field Programmable Gate Array FPLA Field Programmable Logic Array FPLS Field Programmable Logic Sequencer FPM Feet Per Minute FPP Floating Point Package FPS Frames Per Second FPS Feet Per Second FPS Floating Point System FRISC Fast Reduced Instruction Set Computer FS File Separator FSA Finite State Automation FSB Free Storage Block FSBPRT Free Storage Block Printing FSCM Federal Supply Code for Manufacture FSCR Full SCale Range FSK Frequency Shift Keying FSL Forms Source Language FSR Feedback Shift Register FT Full Time FT Fault Tollerant FT Functional Test FTAM File Transfer Access Method FTC Frequency Time Control FTD Functional Test Demonstration FTL Faster Than Light FTM Fault Tollerant Multiprocessor system FTN Field Television Network FTP File Transfer Protocol FTP File Transfer Program FTP File Transfer Protocol FTS File Transfer Support FTS Federal Telecommunications System FTX Fractional TX (a division of the TX bandwith) FUBAR Fouled ?? FUN FUNction FW Freeware FX Foreign eXchange FXBIN FiXed BINary translation FY Fiscal Year Fx Function Key #x G Giga (a prefix meaning X billion) GAAS GAllium ArSenide GAM Graphic Access Method GAMA Graphics Assisted Management Application GAN Generating and Analysing Networks GAP General Assembly Program GAR Growth Analysis and Review GASP Generalized Academic Simulation Program GASP GAS Plasma display GASP Generalized Activity Simulation Program GATE Generalized Access to X.25 Transport Extension GB GigaByte GC Guidance Computer GCDB Geographic Coordinate DataBase GCOS General Comprehensive Operating Supervisor GCR Group Code Recording GDC Greatest Common Divisor GDDM Graphics Data Display Manager GDMO Guidelines for the Definition of Managed Objects GDMS Generalized Data Management System GDO Grid Dip Oscillator GDS Graphic Display System GDT Graphics Development Toolkit GE Greater than GEM Graphics Environment Manager GEMS General Educational Management System GEN GENerator GENESYS GENeral Engineering SYStem GERM Generalized Entity-Relationship Model GERT Graphic Evaluation Review Technique GH GigaHertz GHZ GigaHertZ GI General Inquiry system (AMEX) GICL GraphICs Language GIDS Generalized Intelligent Decision System GIF Graphics Interchange Format GIGO Garbage In Garbage Out GIML Generalized Information Management Language GINO Graphical INput-Output GIOC General Input/Output Controller GIPS Ground Information Processing System GIPSY General Information Processing SYstem GIRS Generalized Information Retieval System GIS Generalized Information System GKS Graphic Kernal System GMAP General Macro Assembly Program GMIS General Management Information System GMT General Machine Test GND GrouND GNP Gross National Product GOCI General Operator-Computer Interaction GOR General Operational Requirement GOSIP Government Ois Profile ?? GPA General Purpose Analysis GPAC General Purpose Analog Computer GPC General Purpose Computer GPD General Purpose Discipline GPDC General Purpose Digital Computer GPDS General Purpose Display System GPF General Protection Faults GPI Graphics Programming Interface GPI General Purpose Interface GPI/O General Purpose Input/Output GPIB General Purpose Interface Bus GPL General Purpose Language GPL Generalized Programming Language GPLAN Generalized database PLANning system GPLP General Purpose Linear Programming GPM General Purpose Macrogenerator GPMS General Purpose Microprogram Simulator GPR General Purpose Register GPSS General Purpose Systems Simulator GR GRoup GRABP Generalized Remote Data Access Database GRABPS Generalized Remote Data Access Database System GRACE GRaphic Arts Composing Equipment GRID GRaphical Interactive Display GRIPHOS General Retrieval & Information PrOCessing GRP GRouP GRS Generalized Retrieval System GS Graphics Standard GS Gray Scale GSAM Generalized Sequential Access Method GSI Grand Scale Integration GSM Generalized Sequential Machine GSS Graphic Service System GSSP Generally accepted System Security Principles GT Greater than GT Game Theory GTO Graphics Test Organizer GUI Graphical User Interface GUIDE Guidance Of Users Of Integrated DP Equipment GULP General Utility Library Program GWB-LINE Global Wholesale Banking LINE GX Graphics eXtended GZ Graphics Z-buffer H Hexadecimal H Hacker H Half-word H Hardware H-B Hexidecimal to Binary HAL Heuristically ALgorithmic programmed computer HASP Houston Automatic Spooling Priority HB HandBook HC Hybrid Computer HC Hard Copy HC Handling Capacity HCI Host Control Interface HD Hard Disk HD Half Duplex HD High Density HDA Head Disk Assembly HDAM Hierarchical Direct Access Method HDC Hard Disk Controller HDDS High-Density Data System HDG HeaDinG HDL Hardware Description Language HDLC High-level Data Link Control HDTV High Density TeleVision HDX Half-DupleX HELP Health Education and Lifestyles Program HEM Hybrid ElectroMagnetic wave HEMT High Electron Mobility Transistor HEP Heterogeneous Element Processor HEX HEXidecimal HF High Frequency HFCS Honeywell Financial and Corporate planning System HFS Hierarchical File System HGA Hercules Graphics Adapter HGC Hercules Graphics Card HH Half Height HH Hours HH/MM Hours/Minutes HI/TC Half-Inch Tape Cartridge HICLASS Hughes Integrated CLASSification System HIDAM Hierarchial Indexed Direct Access Method HIIS Healthcare Integrated Information System HINIL HIgh-Noise Immunity Logic HIO Halt Input/Output HIPAC HItachi Parametron Automatic Computer HIPO Hierarchy plus Input-Process-Output HIS Hospital Information System HITC Half-Inch Tape Cartridge HITS Hobbyist's Interchange Tape Standard HLDLC High-Level Data Link Control HLL High-Level Language HLLAPI High-Level LAnguage Programming Interface HMA High Memory Area HMOS High Speed Metal Oxide Semiconductor HNIL High-Noise Immunity Logic HOL High Order Language HOP Hybrid Operating System HP Hewlett Packard HPF Highest Priority First HPFS High Performance File System HPG High Performance Graphics HPGPL Hewlett Packard Graphics Plotter Language (HP) HPIB Hewlett Packard Interface Bus HPM Harvard Project Manager HRM Human Resources Management HRS Human ReSources HS HandSet HSAC High Speed Analog Computer HSAM Hierarchical Sequential Access Method HSDA High Speed Data Acquisition HSM High Speed Memory HSM Hierarchical Storage Manager HSO Hierarchical Sequential Organization HSP High Speed Printers HSP High Speed Processor HSR High Speed Reader HSSI High Speed Serial Interface (Cisco) HSSP High Speed Scientific Processor HT Horizontal Tabulation HTL High Threshold Logic HTML Hyper Text Markup Language HTP Handwriting Technology Package HTTL High power Transistor-Transistor Logic HUSAT HUman Sciences and Advance Technology HV High Voltage HVPS High Voltage Power Supply HYSNC HorizontallY SyNChronization HZ HertZ I Integer I Inverter I Indicator I Input I Instruction I&C Installation and Checkout I/F InterFace I/O Input/Output I/OM Input/Output Multiplexer IA Intelligent Access IA Information Automation IA0 International Alphabet Number 0 IAB Internet Activities Board IAG Interactive Application Generator IAL International Algorithmic Language IAL International Algebraic Language IAP Integrated Array Processor IAR Initial Address Register IAS Immediate Access Storage IB IsoBar IBA Independent Broadcast Authority IBCS Intel Binary Compatability Standard IBG InterBlock Gap IBM International Business Machines IBM-PC IBM corporation-Personal Computer IBU Independent Business Unit IBX Integrated Business eXchange IC Interrupt Code IC Input Circuit IC Integrated Circuit IC Instruction Counter IC Interface Control IC Information Center IC/T Integrated Computer/Telemetry ICA Integrated Communications Adapter ICA Intelligent Communications Adapter ICB Image Capture Board ICE Input Checking Equipment ICE In-Circuit Emulation ICES Integrated Civil Engineering System ICF Intercommunication Flip-Flop ICF Integrated Catalog Facility ICG Interactive Computer Graphics ICL InComing Line ICL Input Command Language ICMP Internet Control Message Protocol ICMS Information Center Management System ICMS Intelligent Chasis Management System (NEC) ICSU Integrated Channel Service Unit IDA Interconnect Device Arrangement IDA Integrated Digital Access (British Telecom) IDAPS Image DAta Processing System IDC Interactive Datacomm Configuration IDCS Instrumentation/Data Collection System IDCS Integrated Document Control System IDD Integrated Data Dictionary IDD International Direct Dial IDDD International Direct Distance Dialing IDDS International Digital Data Service IDE Intelligent Distributed Editor IDE Integrated Drive Electronics IDE Integrated Development Environment IDF Integrated Data File IDI Improved Data Interchange IDI Intelligent Dual Interface IDM Intelligent Database Machine IDNX Integrated Digital Network eXchange IDP Industrial Data Processing IDP Integrated Data Processing IDPS Interactive Distributed Planning System IDRC Improved Data Recording Capability IDRU Intelligent Digital Recovery Unit IDS Integrated Data Store IDS Input Data Strobe IDTN Integrated Digital Transport Network IE Information Expert IEC InterExchange Carrier IEEE Institute of Electrical and Electronics Engineers IEF Information Engineering Facility IES Information Exchange System IETF Internet Engineering Task Force IETS Interim European Telecommunications Standards IEW Information Engineering Workbench IF Intermediate Frequency IFA Integrated File Adapter (IBM) IFAM Inverted File Access Mechanism IFB Invitation ForBid IFI Intelligent Font Interface IFP Interface Processor IFPS Interactive Financial Planning System IFR Internal Function Register IFRU Interference Rejection Unit IFS Interactive Financial Sharing (IBM) IFS Interactive File Sharing (IBM) IFU Integer Function Unit IGC Intelligent Graphics Controller IGES Initial Graphics Exchange Specification IGF Intelligent Graphics Format IGRP Interior Gateway Routing Protocol IGS Integrated Graphics System IH Interrupt Handler IIAS Interactive Instructional Authoring System (IBM) IIL Integrated Injection Logic IIP Isam Interface Program IIPS Interactive Instructional Presentation System IIS Interactive Instruction System (IBM) IKBS Intelligent Knowledge Based Systems ILC Instruction Length Code ILC Intelligent Local-area network Controller ILF Initial License Fee ILLIAC ILLInois Automatic Computer ILN Intelligent Local-area Network ILSW Interrupt Level Status Word IM InstruMentation IM Interface Multiplexer IM/DM Information Management/Data Management IM/VE Information Management/Virtual Environment IM/ZEUS Information Management/Zero Effort User System IMAP Industry Marketing Assistance Program IMC Image Motion Compensation IMD Interactive Map Definition IMD ImMeDiate IMF Interactive Mainframe Facility IMIS Integrated Management Information System IML Initial Microprogram Load IMM Intelligent Memory Manager IMNET International Marketing NETwork IMOD Industrial MODernization IMP Interface Message Processor IMPACT Integrated Management of Personnel Administration IMPL Initial MicroProgram Load IMPRS Information Management Process Reporting System IMS Instructional Management System IMS Inventory Management and Simulation IMS Inventory Management System IMS Information Management System (IBM) IMS/VS Information Management System/Virtual Storage IMSPARS IMS Performance Analysis Reporting System IMT Information Management Technology IMTS Improved Mobile Telephone Service IN INput IND INDicator INF INFormation INFO Information Network and File Organization INFO INFOrmation INFONET INFOrmation NETwork INGRES INteractive Graphics REtrieval System INI INItilization (file extension MS-DOS) INIT INITiate INIT INITialize INQ INQuiry INS Information Network Services INS International Navigation System INS Integrated Network Services (NTT Japan) INST INSTruction INT INTeger INT INiTial INT INTerrupt INTCON INTernational CONnection IOB Input/Output Buffer IOC Input/Output Controller IOC Initial Operating Capability IOCC Input/Output Control Center IOCC Input/Output Control Command IOCS Input/Output Control Services IOCS Input/Output Control System IOO Input/Output Operation IOP Input/Output Processor IOPS Input/Output Processing System IOR Input/Output Register IOREQ Input/Output REQuest IORL Input/Output Requirements Language IOS Integrated Office System IOS Inter Optical Systems IOT Input/Output Transfer IOT Image Output Terminals IOTA Information Overload Testing Apparatus IOU Immediate Operation Use IP Item Processor IP Information Processing IP Instruction Processor IP Internet Protocol IP Image Processing IP Image Processor IP Information Provider IP/FTP Internet Protocol/File Transfer Protocol IPA Information Processing Architecture IPA Intermediate Power Amplifier IPB Intermediate Parts Breakdown IPC Information Processing Center IPC Industrial Programmable Control IPC Internet Packet Controller IPC Industrial Process Control IPC Interprocess Communications IPCS Interactive Programming Control System IPD Insertion Phase Delay IPDP-XX Industrial PDP-XX (DEC Computer) IPDS Intelligent Printer Data Stream IPE Interpret Parity Error IPF Interactive Productivity Facility IPI Intelligent Printer Interface IPL Initial Program Load IPL-V Information Processing Language V IPM Impulses Per Minute IPM Identical Phase Modulation IPN Instant Private Network IPN Information Processing Network IPN Inspection Progress Notifications IPO Input/Process/Output IPO Installation Productivity Option (IBM) IPOT Inductive POTential divider IPR In-Process Review IPS Inches Per Second IPS Intelligent Process System IPS Information Processing System IPSE Integrated Project Support Environment IPSS International Packet Switched data Service (UK) IPX Internet Packet eXchange IQF Interactive Query Facility IR InfraRed IR Information Retrieval IR Instruction Register IRC International Record Carrier IRC Internet Relay Chat IRD International Resource Development IRDB Information Retrieval DataBank IRG Inter-Record Gap IRM Information Resource Management IRP Initial Receiving Point IRQ Interrupt Request Signal IRR Internal Rate of Return IRS Information Retrieval System IS Interval Signal IS International Standard IS Indexed Sequential IS Information System ISA Interrupt Storage Area ISA Industry Standard Architecture ISAM Integrated Switching And Multiplexing ISAM Indexed Sequential Access Method ISBN International Standard Book Number ISC Integrated Storage Control (IBM) ISC Inter-Systems Coupling ISDN Integrated Services Digital Network ISDOS Information System Design and Optimization System ISF Information Security Foundation ISI Internally Specified Index ISIS Integrated Student Information System (SCT) ISIS Information Systems Investment Strategies ISK Insert Storage Key ISL Information Systems Language ISL Instructional Systems Language ISL Interactive Simulation Language ISM Integrated Service Management ISN Information Systems Network ISO Individual System Operation ISODATA Iterative Self-Organizing Data analysis technique ISP Information Strategy Planning ISP Instruction Set Processor ISP Information Systems Planning ISPF Interactive System Productivity Facility (IBM) ISPF/PDF ISPF/Program Development Facility ISPL Instruction Set Processor Language ISPN International Standard Program Number ISPS Instruction Set Processor Specifications ISR Intersecting Storage Rings ISR Information Storage and Retrieval ISR Information and Systems Research ISSCO Integrated Software Systems COrporation IST International Security Technology ISU Information Services and Utilities IT Item Transfer IT Information Technology IT Intelligent Terminal IT Internal Translator ITB Intermediate Text Block ITC Image Transfer Controller ITDM Intelligent Time-Division Multiplexer ITE Integrated Terminal Equipment ITMS Intelligent Text Management System ITS Invitation To Send ITS Integrated Trading System ITU International Telecommunication Union IUP Installed User Program IV InVerter IVAX Industrial VAX (DEC Computer) IVDT Integrated Voice/Data Terminal IW Index Word IX IndeX IX Interactive eXecutive (IBM) IXC IntereXchange Carrier JA Jump Address JAD Joint Application Design JAWS Joint Analytical Warfare System (DOD) JCL Job Control Language JCP Job Control Procedure JCTN JunCTioN JDC Job Description Card JDS Job Development System (IBM) JEP Job Entry Program (IBM) JES Job Entry Subsystem JGN Junction Gate Number JHP Jupiter Host Processor JIB Job Information Block JIP Joint Input Processing JIS Japanese Industrial Standard JIT Just-In-Time JNF Job Networking Facility JO Job Order JOBCAT JOB CATalog JOC Joint Operations Center JOD Journal Of Development JPW Job Processing Word JSAN Joint Staff Automation for the Nineties (DOD) JT Job Table JUG Joint Users Group K Kilo (prefix meaning "one thousand") K Kilobytes KAK Key-Auto-Key KAU Keystation Adapter Unit KB KiloByte KB KeyBoard KB/SEC KiloBytes/per SECond KBMS Knowledge Base Management System KBPS KiloBits Per Second KBS Knowledge Base Systems KCC Keyboard Common Contact KCS Thousand Characters per Second KDR Keyboard Data Recorder KDS Kiting Detection System KDS Keyboard Display Station KDS Key Display Station KE Knowledge Engineering KEE Knowledge Engineering Environment KEEPS Kodak Ektaprint Electronic Publishing System KILO (prefix meaning "x thousand") KIMS Kodak Image Management System KIPS Kilo Instructions Per Second KISS Keep It Simple Sir KL Key Length KMS Keysort Multiple Sectors KP Key Pulsing KPC Keyboard Priority Controller KPR Kodak Photo Resist KPS Key Strokes per Second KS Key Strokes KSAM Keyed Sequential Access Method KSDS Key Sequence Data Set KSOS Kernalized Secure Operating System KSR Keyboard Send-Receive set KSS Key Strokes per Second KST Known Segment Table KTR Keyboard Typing Reperforator KWIC Key Word In Context KWOC Key Word Out of Context L Label L Level L Line L Load L/LM Location/Lot Management L/MF Low and Medium Frequency LAC Load ACcumulator LACM Load ACcumulator with Magnitude LACN Local Area Communications Nets LADT Local Area Data Transport LAM Logical Access Map LAMA Local Automatic Message Accounting LAN Local Area Network LANACS LAN Asynchronous Connection Server LAP Link Access Protocol LAPB Link Access Procedure Balanced LAPD Link Access Procedure "D" LAPM Link Access Procedure for Modems LARC Livermore Automatic Research Computer LARCT LAst Radio ConTact LATA Local Access Transport Area LAVC Local Area Vax Cluster LB Line Buffer LBA Linear Bound Automation LBL LaBLe LC Logical Connection LC Line Connector LC Level Control LC Last Card LC Lower Case LCB Line Control Block LCD Liquid Crystal Display LCD Line Current Disconnect LCDTL Load-Compensated Diode-Transistor Logic LCI Local Craft Interface LCL Linkage Control Language LCL LoCaL LCM Least Common Multiple LCM Large Core Memory LCP Language Conversion Program LCR Least-Cost Routing LCS Liquid Crystal Shutter LCZR LoCaliZeR LD Long Distance LD Logic Driver LD LoaD LD Linear Decision LDA Local Data Area (IBM) LDA Locate Drum Address LDB Local Data Base LDC Latitude Data Computer LDDS Low Density Data System LDE Linear Differential Equations LDM Limited-Distance Modem LDRI Low Data Rate Input LDS Large Disk Storage LDT Long Distance Transmission LDT Logic Design Transistor LDU Link Diagnostic Unit LDX Long Distance Xerography LE Less than or Equal to LE Leading Edge LEAS Lower Echelon Automatic Switchboard LEC Local Exchange Carrier LED Light Emitting Diode LENN Low Entry Networking Node LEO Lyons Electronic Office LET Logical Equipment Table LEVEL X (...) LF Line Feed LG Line Generator LGN Line Gate Number LGNT Length LIC Linear Integrated Circuit LIC Line Interface Coupler LICOF Land lines COmmunications Facilities LIFO Last In First Out LIM LIMit LIM Lotus Intel Microsoft LIM Line Interface Module LIMAC Large Integrated Monolithic Array Computer LINAC LINear ACcelerator LINC Local network Integrated Network Connectivity LINC Laboratory INstrument Computer LINE II Logic and Information NEtwork compiler Ii LIOCS Logical Input/Output Control System LIPS Logical Inferences Per Second LIS Land Information System LISP LISt Processing LIT LITeral LIU Line Interface Unit LJES Lan Job Entry System LL Low Level LL Loudness Level LLC Logical Link Control LLCC3 Logical Link Control system Class 3 LLL Low Level Logic LMF License Management Facility LMLR Load Memory Lockout Register LMS Laser Magnetic Storage LMT LiMiT LO Line Occupancy LO Local Oscillator LO Low Order LOB Line Of Business LOCS LOgic and Control Simulator LOG LOGic LOG LOGarithm LOGANDS LOGical commANDS LOGI LOGarithm computing Instrument LOGRAM LOGical progRAM LOMAS Law Office Management and Accounting System LOS Loss Of Signal LP Line Printer LP Linear Programming LPM Lines Per Minute LPN Local Packet Network LPS Lines Per Second LPSW Load Program Status Word LQ Letter Quality LQP Letter Quality Printer LR Line Relay LR Logical Record LR Level Recorder LRA Load Real Address LRA Lease or Rental Agreement (IBM) LRC Longitudinal Redundancy Check LRD Long Range Data LRECL Logical RECord Length LRIM Long Range Input Monitor LRS Long Range Search LRU Least Recently Used LS Low Speed LS Language Specification LS Laser System LS Local Storage LSA Logistic Systems Architecture LSA Local System Administrator LSB Least Significant Bit LSD Line Sharing Device LSD Line Signal Detector LSD Least Significant Digit LSE Lattice Screen Editor LSI Large Scale Integration LSM Library Storage Modules LSNLIS Linear Sciences Natural Language Information System LSO Local Storage Option LSP Low Speed Printer LSSGR Local Switching System General Requirements LSTTL Low-power Schottky Transistor-Transistor Logic LT Logical Theorist LT Less Than LTL LiTeraL LTR LetTeR LTRS LetTeRs Shift LTX LapTop eXpansion (slot) LU Logical Unit LUB Logical Unit Block LUT Local User Terminal LV Low Voltage LVCD Least Voltage Coincidence Detection LWD Larger WorD LWR LoWeR M Magnetic M Monochrome M Mega M Monitor M Media M Meter M Milli- M&O Maintenance and Operations M-B Make-Break M-D Modulation-Demodulation MA Memory Address MA Modify Address MA Message Assembler MAC MACIntosh computer (Apple Computers) MAC Multi-Access Computing MAC Machine-Aided Cognition MAC Media Access Control MACE Management Access in a Computer Environment MACRO MACROinstruction MACS Multiline Automatic Calling System MACS Management And Computer Systems MACU Multidrop Auto-Call Unit MAD Michigan Algorithmic Decoder MAD MultiAperature Device MAD Multiple Access Device MADT MicroAlloy Diffused-base Transistor MAG MAGnetic MAGCARD MAGnetic Card word processor (IBM) MAL Macro Assembly Language MAM Multiple Access to Memory MAN MANual MAN Metropolitan Area Network MANOP MANual Of OPeration MAP Manufacturing Automation Protocol MAP Memory Allocation and Protection MAP Military Assistance Program MAP Macro Arithmetic Processor MAP Message Acceptance Pulse MAPS Management Analysis and Planning Software MAR Memory Address Register MARC MAchine-Readable Catalog MARC MAchine-Readable Cards MARS Memory Address Register Storage MARS Multi-access Airline Reservation System MARTEC MARtin Thin-film Electronic Circuit MAS Management Advisory Services MASM Microsoft "C" ASseMbler MASS Monitor and ASsembly System MASS Multiple Access Sequential Selection MAT MicroAlloy Transistor MAU Multistation Access Unit MAU Media Access Unit MAX MAXimum MB Memory Buffer MB MegaByte MBB Make Before Break MBM Magnetic Bubble Memory MBPS MegaBits Per Second MBQ Modified Biquinary Code MBR Memory Buffer Register MBR-E Memory Buffer Register-E MBR-O Memory Buffer Register-O MBT Memory Block Table MC MicroChannel MC Manual Control MC Master Control MC Memory Controller MC Magnetic Core MC MegaCycle MCA MicroChannel Architecture MCC Magnetic Chip Carrier MCC Management Control Center MCC Multi-Component Circuits MCCC Master Communications Control Center MCD Master Clerical Data MCGA Multi-Color Graphics Array MCM Magnetic Core Memory MCM Master Control Module MCP Master Control Program MCP/AS Master Control Program/Advanced System MCR Magnetic Character Reader MCR Multi-Channel Recording MCR Magnetic Character Recognition MCR Master Control Routine MCS Multi-programmed Computer System MCS Multi-purpose Communications and Signaling MCS Master Control System MCS-A Multi-functional Communications System -Asynchronous MCU Multiple Control Unit MCU Microprogram Control Unit MCU Multi-Chip Unit MCU Master Control Unit MCVAB MicroComputer Vendor Advisory Board MCW Modulated Continuous Wage MD Magnetic Disk MD Motor Drive MD Main Drum MD Monitor Display MD Message Data MD Multiple Data (stream) MD Multiple Dissemination MDA Monochrome Display Adapter MDC Modification Detection Code MDI Multiple Document Interface MDM Modulator Data Module MDNS Meridian Data Networking Systems MDR Memory Data Register MDR Multi-channel Data Recorder MDS Multiple Dataset System MDS Memory Disk System MDS Microprocessor Development System MDS Minimum Discernable Signal MDS Market Decision System MDS Malfunction Detection System MDS Modern Data Systems MDSB Message Digest Signature Block MDT Mean Down Time MDV Multi-Drive Version ME MicroElectronic ME Modular Electronics ME Mechanical Efficiency MEDLARS MEDical Literature Analysis and Retrieval System MEDLINE MEDlars on-LINE system MEGA (prefix meaning "one million") MEM MEMory MEMISTOR MEMory regIster STORage Device MER Minimum Energy Requirements MES Miscellaneous Equipment Specifications MEW Microwave Early Warning MEX Military EXchange MF MicroFiche MF Medium Frequency MF MainFrame MFC Magnetic-tape Field Scan MFCM MultiFunction Card Machine MFKP MultiFrequency Key Pulsing MFLOPS Million FLOating point instructions Per Second MFM Modified Frequency Modulation MFS Message Format Services MFS Magnetic tape Field Search MFS MacIntosh File System MFSK Multiple Frequency Shift Keying MFT Multiprogramming with a Fixed number of Tasks MFU MicroFunctional Unit MG Motor Generator MGMT ManaGeMenT MGR ManaGeR MHD Moving-Head Disk MHP Message Handling Processor MHS Message Handling System MHZ MegaHertZ MI Mode Indicator MI Manual Input MI Multiple Instruction stream MIACS Manufacturing Information And Control System MIB Management Information Base MIC Microwave Integrated Circuit MIC MacroInstruction Compiler MIC Magnetic Ink Characters MICR Magnetic Ink Character Recognition MICRO MICROcomputer MICS Management Information and Control System MIDAC MIchigan Digital Automatic Computer MIDI Musical Instrument Digital Interface MIF Meridian Internal Form MILSTD MILitary STanDards MIMR Magnetic Inck Mark Recognition MIN MINute MIN MINimum MINX Multimedia Information Network eXchange MIP Manual Input Processing MIPE Modular Information Processing Equipment MIPS Millions of Instructions Per Second MIR Memory Input Register MIR Memory Information Register MIS Management Information Science MIS Management Information Systems MIS Marketing Information System MISP Medical Information System Programs MIT Massachusetts Instite of Technology MIT Master Instruction Tape MIU Multistation Interface Unit MIU Machine Interface Unit MKS Meter-Kilogram/Second ML Machine Language MLA Microprocessor Language Assembler MLA Microprocessor LAnguage MLB Microcom Lan Bridge MLB MultiLayer Board MLE Microprocessor Language Editor MLF Monthly License Fee MLPSC Monthly Licensed Program Support Charge MLPWB MultiLayer Printed Wiring Board MLR Memory Lockout Register MM MiliMeter MM Main Memory MMA Multiple Module Access MMAC Multi-Media Access Center MMD Moving Map Display MMDDYY Month-Day-Year MMLPSC Monthly Multiple Licensed Program Support Charge MMS Municipal Management System MMS Manufacturing Message Specifications MMS Mass Memory Store MNCS Multipoint Network-Control System MNOS Metal-Nitride-Oxide Semiconductor MNP Microcom Networking Protocol (Microcom) MO Manual Output MO Miscellaneous Operation MO Master Oscillator MOC Master Operational Computer MOD MODule MOD MODulation MOD MODular MODEM MODulator-DEModulator MOE Measure Of Effectiveness MOHILL Machine Oriented HIgh Level Language MOL Machine Oriented Language MOME Mail Order Management Expert MON MONitor MONO MONOchrome MONOS MONitor Out of Service MOPA Master Oscillator-Power Amplifier MOPB Manually Operated Plotting Board MOS Management Operating System MOS Metal Oxide Semiconductor MOSFET Metal Oxide Semiconductor Field Effect Transistor MP MultiProcessor MP Maintenance Point MP Modem Port MP Mathematical Programming MP/M MultiProgramming control prograM MPACS Management Planning And Control System MPCC MultiProtocol Communications Controller MPDA Monitor Printer Diskette Adapter MPG Microwave Pulse Generator MPL Multischedule Private Line MPL MultiPLe MPP Mono Power Pack MPPL Multi-Purpose Processing Language MPS MicroProcessor System MPS MultiProgramming System MPSCL Mathematical Programming System Control Language MPSX Mathematical Programming System eXtended MPU MicroProcessor Unit MPX MultiPleXer MPY MultiPlY MQ Multiplyer Quotient MQR Multiplier Quotient Register MR Memory Read MR Memory Register MRAD Mass Random Access Disk MRJE Multileaving Remote Job Entry MRM Micro Resource Manager MRO Multi-Region Option MRP Materials Requirement Planning MRP Manufacturing Resources Planning MRT Multiple Requests Terminal MRU Machine Records Unit MS ManuScript MS Magnetic Storage MS Memory System MS-DOS MicroSoft Disk Operating System MS-OS/2 MicroSoft Operating System/2 MSB Most Significant Bit MSC Multiple System Coupling (IBM) MSCP Mass Storage and Control Protocol MSD Most Significant Digit MSEC MilliSECond MSF Mass Storage Facility (IBM) MSG MeSsaGe MSG MeSsaGe region (IBM) MSG/WTG MeSsaGe WaiTinG MSHP Maintenance and Service History Program (IBM) MSI Medium Scale Integration MSIS Manufacturing Systems Integration Service MSK MaSK MSL Member Specification Library (IBM) MSNET MicroSoft (R) NETwork MSNF Multiple System Networking Facility (IBM) MSO Multivendor Support Operation (HP) MSOS Mass Storage Operating System MSR Management Support Representative MSS Multi-LAN Storage System MSS Mass Storage System MSSE Mass Storage System Extended (IBM) MSU Modem Sharing Units MSUDC Michigan State University Discrete Computer MT Magnetic Tape MT Machine Translation MT Multiple Transfer MT Measured Time MT Maintenance Technician MT/SC Magnetic Tape/Selectric Composer MT/ST Magnetic Tape/Selectric Typewriter MTBF Mean Time Between Failure MTC Magnetic Tape Control MTCU Magnetic Tape Control Unit MTE Multiple Terminal Emulator MTF Mean Time to Failure MTL Merged Transistor Logic MTM Multiple Terminal Manager (IBM) MTM Methods-Time Management MTO Multi-Tasking Only MTR Magnetic Tape Recorder MTS Message Telecommunications Services MTS Michigan Terminal System MTS Magnetic Tape System MTSO Mobil Telephone Switching Office MTT Magnetic Tape Transport MTT Magnetic Tape Terminal MTTF Mean Time To Failure MTTR Mean Time To Repair MUL MULtiplexed information and computing system MULTICS MULTiplexed Information and Computing Service MUX MUltipleXer MV Mean Value MV Measured Value MV MilliVolt MVDI Microfield Virtual Device Interface MVDT Modular Voice/Data Terminal MVS Multiprogramming with Virtual Storage MVS Multiple Virtual Storage MVS Multiple Virtual Systems MVS/AS Multiple Virtual Storage/Application System MVS/SE Multiple Virtual Storage/System Extension (IBM) MVS/SP Multiple Virtual Storage/System Product MVS/XA Multiple Virtual Storage/eXended Architecture MVT Multiprogramming with Variable number of Tasks (IBM) MW Memory Write MWAP Memory-linked Wavefront Array Processor MWI Message Waiting Indicator MX MatriX MX MultipleX N Numeric N Number N Nano N No NA Not Assigned NA Not Applicable NAARS National Automated Accounting Research System NAB Netware Asynchronous Board (Novell) NACS Netware Asynchronous Connection Service (Novell) NAD Node ADministration NAK Negative AcKnowledgement NAND Negative AND NANO Miljard (10^6) NAPLPS North American Presentation-Level-Protocol Syntax NAS Network Application Services NASI Network Asychronous Services Interface NAU Network Addressable Unit NBCD Natural Binary Coded Decimal NBFM Narrow Band Frequency Modulation NC Network Computer NC No Change NC No Charge NC Network Controller NC No Connection NC Numerical Control NC Network Connect NCC Network Control Computer NCCF Network Communications Control Facility NCP Network Control Program NCR-DNA NCR corporation Distributed Network Architecture NCS Network Computing System NCS National Communications Systems NCTE Network Channel Terminating Equipment NCU Network Conversion Unit ND-SAFE Norsk Data Systems Architecture For Expansion NDBMS Network DataBase Management System NDIS Network Driver Interface Specification NDM Network Data Mover NDPA Network Problem Determination Application (IBM) NDR NonDestructive Read NDRO NonDestructive ReadOut NDT Net Data Throughput NDT NonDestructive Testing NE Network Elements NEC National Electrical Code NEG NEGative NEP Never Ending Program NES News Electronic Service NES Not Elsewhere Specified NETBEUI NETBios Extended User Interface NETBIOS NETwork Basic Input/Output System NETDA NETwork Design and Analysys NETPARS NETwork Performing Analysis Reporting System NEWS/2 Network Extensible Windowing System/2 NEXIS (R)(Mead Data Central) computerized database of news NEXT Near End Crosstalk Loss NFS Network Facilities Services NFS Network File System NFSP Netware File Service Protocol (Novell) NI Numerical Index NIC Network Interface Controller NIC Network Interface Card NIFTP Network Independent File Transfer Program NIL (nothing) NINO Nothing-In Nothing-Out NIOS Nixdorf Integrated Office System NIPO Negative Input Positive Output NIU Network Interface Unit NJE Network Job Entry NKSR Non-Kernel Security Related NLDM Network Logical Data Manager NLM Netware Loadable Module NLP Non Linear Programming NLQ Near Letter Quality NLR Noise Load Ratio NMC Network Management Center NME Noise Measuring Equipment NMI Non-Maskable Interrupt NMOS N-channel Metal-Oxide Semiconductor NMOS Nitride-Metal-Oxide Semiconductor NMPF Network Management Productivity Facility NMS Network Management System NMVT Network Management Vector Transport NNTP Network News Transport Protocol NNTP Network News Transfer Protocol NOI Node Operator Interface NOM NOMinal NOP No OPeration NORC Naval Ordinance Research Computer NOS Network Operating System NOS/VE Network Operating System/Virtual Environment NP Net Proceeds NP Nondeterministic Polynomial NP/L New Program Language NPA Network Performance Analyzer NPDA Network Problem Determination Application NPDN Nordic Packet Data Network NPL New Product Line NPL N-Processor Line NPM Network Performance Monitor NPV Net Present Value NR Not Required NR NumbeR NR Noise Ratio NRC Noise Reduction Coefficient NRFD Not Ready For Data NRT Non-Requesting Terminal NRZ Non-Return to Zero NRZX Non-Return to Zero X NS NanoSeconds NS National Standard NSC Noise Suppression Circuit NSEP National Security Emergency Preparedness NSLP NetWare Link State Protocol NSN National Stock Number NSP Network Services Protocol NT No Transmission NT New Technology (e.g. WINDOWS NT) NT Not Tested NTIS National Technical Information Service NTN National Telecommunications Network NTO Network Terminal Option NTPF Number of Terminals Per Failure NTS Network Test System NTSC National Television Standard Code NUM NUMber NVM NonVolatile Memory O Octal O Output O&C Operations and Checkout O&M Organization and Methods O-B Octal to Binary O-D Octal to Decimal O/C Open Circuit O/L On Line O/R On Request OA Operations Analysis OA Office Assistant OA Office Automation OAG EE Official Airline Guide Electronic Edition OAP Office Automation Planning OAS Office Automation System OASF Office Automation System Facilities OB Output Buffer OBR Optical Bar Code OC-X Optical Carrier X OCC Operations Control Center OCCA Open Cooperative Computing Architecture OCM Operations Control Manager OCO Object Code Only OCR Optical Character Recognition OCR Optical Character Reader OCR-A Optical Character Reader font A OCR-B Optical Character Reader font B OCT OCTal OD Output Data OD ROM Optical Disk Read Only Memory OD3 Optical Digital data disk ODA Office Document Architecture ODBC Open Database Connectivity (Microsoft) ODE Ordinary Differential Equation ODE Online Data Entry ODI Operator Data Input ODIF Office Document Interchange Format ODS Office Dialog System OEM Original Equipment Manufacturer OFC OFfiCe OFF OFFice OH Off Hook OIRA Office of Information and Regulatory Affairs OIRM Office of Information Resources Management OIS Office Information Systems OJT On-the-Job Training OL OnLine OLC OnLine Computer OLE Object Linking and Embedding OLM OnLine Monitor OLPS OnLine Programming System OLTD OnLine Test/Debug OLTEP OnLine Test Executive Program (IBM) OLTP OnLine Terminal Processing OLTP OnLine Transaction Processing OM Operations Maintenance OMF Object Management Facilty (HP) OMR Optical Mark Reader OMS Office Management System ONA Open Network Architecture OODBMS Object Oriented DataBase Management System OOF Office Of the Future OOP Object Oriented Programming OP Office Products OP OutPut OP OPeration OPC Operations Planning and Control (IBM) OPEN Open Protocol Enhanced Networks OPM Operations Per Minute OPM Operator Programming Method OPN OPeN OPND OPeraND OPT OPTical OPTUL OPtical pulse Transmitter Using Laser OR Operational Research OR Operations Research OR Optical Reader ORCA On-line Resource Control Aid ORDVAC ORDnance Variable Automatic Computer ORG ORGanization ORIG ORIGination ORM Optical Remote Module OS Operating System OS/2 Operating System/2 (IBM) OS/VS Operating System/Virtual Storage (IBM) OS/VS X Operating System/Virtual Storage X (IBM) OSA Open Systems Architecture OSA Office Systems Administrator OSAM Overflow Sequential Access Method OSAR Optical Storage And Retrieval OSF Office Systems Family OSI Open Systems Interconnection OSIS Open Shops for Information Services OSPF Open Shortest Path First OSR Optical Scanning Recognition OSWS Operating System Work Station OT OverTime OTC Office Technology Center OTN Other-Than-New OTS Office TeleSystem OUT OUTput OVFLO OVerFLOw P Power P Punch P Packed P Parity P&L Profit & Loss P-BIT Parity BIT P-C Process Controller P-CODE Pseudo CODE PA Power Amplifier PA Paper Advance PA Program Access PA Program Analysis PA Public Address PABX Private Automated Branch eXchange PACEO Professional Application Creation EnvirOnment PACT Production Analyses Control Technique PACT Pay Actual Computer Time PAD Packet Assembler/Disassembler PAL Programmable algorithm machine Assembly Language PAL Programmable Array Logic PAL Paradox Application Language PAL Phase Alternate Line (European color TV standard) PAM Pulse Amplitude Modulation PAM Personal Accounting Management PAMRI Peripheral Adapter Module Replacement Item PAR PARameter PAR Performance Analysis and Reporting standard PARA PARAgraph PARS Programmed Airline Reservation System PAS Personal Accounting System PAT Printer Action Table PATN PaTterN PAX Private Automatic eXchange PB Payback Period PB Plug Board PBX Private Branch eXchange PC Paper Change PC Punched Card PC Personal Computer PC Printed Circuit PC Professional Computer PC Program Counter PC Process Control PC DOS Personal Computer Disk Operating System PC ET IBM Personal Computer Educational Technology PC-LAN Personal Computer Local Area Network PC/G Personal Computer Graphics PC/GPC Personal Computer Graphics Control Program PC/GX Personal Computer Graphics eXtended PC/IX Personal Computer/Interactive eXecutive PC/T Personal Computer/Technology PCA Physical Configuration Audit PCB Printed Circuit Board PCB Program Control Block (IBM) PCC Program-Controlled Computer PCDP Punched Card Data Processing PCI Peripheral Component Interface PCL Printer Control Language PCM Plug Compatible Machine PCM Plug-Compatible Manufacturer PCM Plug Compatible Mainframe PCM Printer Command Language PCM Pulse-Code Modulation PCMCIA PC Memory Card International Association PCNP Personal Computer Network Program PCP Primary Control Program PCR Program Control Register PCS Programmable Communications Subsystem (IBM) PCS Punched Card System PCS Personal Computer System PCS Personal Communications Server PCS Program Control Sheet PCSA PC Systems Architecture PCTE Portable Common Tool Environment (European) PCXT Personal Computer eXTended PD Pointing Device PDA PushDown Automation PDA Problem Determination Aid (IBM) PDA Pointing Device Adapter PDE Partial Differential Equation PDF Problem Determination Facility PDI Picture Description Instructions PDL Program Design Language PDL Procedure Definition Language (IBM) PDM Product Data Manager (Prime) PDN Public Data Network PDP Programmed Data Processor PDR Preliminary Data Report PDS Premises Distribution System PDS Personal Decision Series PDS Professional Development Seminar PDS Premises Distribution System (AT&T) PDS Personal Data System PDS Problem Descriptor System PE Project Engineer PE Phase Encoded PEER Project Engineer Evaluation Report PEL Picture ELement PEM PhotoelEctroMagnetic PEN Purchasing Electronic Notebook PEP Packetized Ensemble Protocol PEP Partitioned Emulation Programming (IBM) PERCOS PERformance COding System PERT Program Evaluation Review Technique PES PhotoElectric Scanning PET Personal Electronic Translator PF Page Formatter PF Program Function PF#2 Program Function Key #2 PF#x Program Function Key #x PFET Programmable Front-End Processor PFR Power-Fail Recovery PFR Power-Fail Restart PGC Professional Graphics Controller PGF Presentation Graphics Facility (IBM) PGP Pretty Good Privacy PGS Program Generation System PHIGS Programmers Hierarchal Interactive Graphics System PHT PHotoTube PI Profitability Index PI Performance Index PI Programmed Instruction PIA Peripheral Interface Adapter PIC Priority Interrupt Controller PICO Triljoen (10^12) PICS Personal Computer Instructional System PICU Priority Interrupt Control Unit PIM Personal Imformation Manager PIN Police Information Network PIN Personal Identification Number PINO Positive Input Negative Output PIP Programmable Integrated Processor PIP Paper Impact Printing PIPS Pattern Information Processing Systems PISO Parallel In Serial Out PISW Process Interrupt Status Word PIT Programmable Interval Timer PIU Path Information Unit PIU Plug In Unit PIXEL PIcture Element PKD PacKkDed PL Programmable Logic PL/I Programming Language One PLA Programmable Logic Array PLATO Programmable Logic for Automatic Teaching Operation PLC Power Line Conditioner PLDM Power Line Disturbance Monitor PLL Phase Locked Loop PLM Pulse Length Modulation PLP Party Line Protocol PLT Program Library Tape PM Preventative Maintenance PM Phase Modulation PM Procedures Manual PMC Pseudo Machine Code PMI Picture Manipulation Instruction PMMG Page Memory ManaGement unit PMMU Paged Memory Management Unit PMOS Positive Metal-Oxide Semiconductor PMS Program Management System PMS Processor Memory Switch PMS Public Message System PMS Pantone Matching System PMS Personal Mailing System PMS Project Management System PMT Page Map Table PMTA Page Map Table Address register PMX Packet MultipleXer PN Permanent Nucleus PND Present Next Digit PNET Power NETworking (IBM) PNX Private Network eXchange PO Purchase Order PO PartitiOned POACH Pc On A CHip PODPS Post Observation Data Processing System POF Plastic Optical Fiber POF Programming Operator Facility (IBM) POGO Programmer Oriented Graphics Operation POH Power-On Hours POL Problem Oriented Language POL Procedure-Oriented Language POL Process-Oriented Language POP Programmer/Operator Productivity aid (IBM) POP Point Of Presence PORT Photo-Optical Recorder Tracker POS Point Of Sale POS Primary Operating System POS Programmable Option Select POS POSitive POSET Partially Order SET POSIX Portable Operating System Interface POT Physical Organization Table POTS Plain Old Telephone Service POWER Priority Output Writes PP Peripheral Processor PP Pages PP Pre-Processor PPC Personal Portable Computer PPDS Personal Printer Data Stream PPI Parallel Port Interface PPL Polymorphic Programming Language PPL Preferred Products List (US government) PPM Pulses Per Minute PPM Pulse Position Modulation PPMS Professional Productivity Management Sytem PPP Point to Point Protocol PPS Pulses Per Second PPS Parallel Processing System PPS Presidental Priority Systems PPT Punched Paper Tape PPU Peripheral Processing Unit PR PRint PR Physical Records PR Pattern Recognition PR Public Relations PRA Primary Rate Access PRD Processing Data Rate PRELIM PRELIMinary PRI Primary Rate Interference PRI Primary Rate Interface PRIM PRogrammed Instruction for Management education PRISM PRogrammed Integrated System Maintenance PRM PRiMary PRM PReventative Maintenance PROC PROCedure PROC PROCessor PROF PROFession PROFS PRofsssional OFfice System (IBM) PROG PROGram PROLOG (a predicate logic programming language) PROM Programmable Read Only Memory PRPQ Programming Request for Price Quotation PRR Pulse Repetition Rate PRS Pattern Recognition System PRT PRinTer PRT Production Run Tape PRT Portable Remote Terminal PRT PRinT PRT Program Reference Table PRTM Printing Response Time Monitor PRTY PRioriTY PS Power Supply PS Personal Services PS Pico-Seconds PS Physical Sequential PS Programmed Symbols PS/2 Personal System/2 (IBM) PS/M Programming Language M PSA Personal Statement Analyzer PSA Pushdown Stack Automation PSB Program Specification Block (IBM) PSD Printer Sharing Device PSE Packet Switching Exchange PSEC PicoSECond PSK Phase Shift Keying PSN Packet Switching Network PSOS Provably Secure Operating System PSR Program Support Representative PSS Packet Switched Service (UK) PSS Public Safety System PSTN Public Switched Telephone Network PSU Program Storage Unit PT Program Table PT Paper Tape PT Part Time PT Punched Tape PTAT Private TransAtlantic Telecommunications system PTF Program Temporary Fix (IBM) PTO Pleas Turn Over PTP Paper Tape Punch PTR Paper Tape Reader PTT Post Telegraaf Telefoon PU Power Unit PU Processing Unit PUB Physical Unit Block PUC Public Utilities Commission PUFFT Purdue University Fast Fortran Compiler PUMA Processor Upgradable Modular Architecture PUT Program Update Tape (IBM) PV Present Value PVM Pass through VM facility (IBM) PVS Program Validation Service (IBM) PWB Printer Wire Board PWI PoWer Indicator PWM Pulse Width Modulation PWS Programmer Work Station PnP Plug & Play (Microsoft standard) Q Quantity Q Question Q Quality Q used as the unknown variable Q Query QA Quality Assurance QAM Quadrature Amplitude Modulation QBE Query By Example (IBM) QC Quality Control QCC Quality Control Circles QEMM Quarterdeck Expanded Memory Manager QF Quality Factor QIC Quarter-Inch Cartridge QIC Quarter-Inch Compatability QIL Quad-Inline QISAM Queued Indexed Sequential Access Method QIT Quality Information and Test system QL Query Language QMF Query Management Facility QMS Quality Micro Systems QPDM Quad Pixel Dataflow Manager QPL Quality Products List QSAM Queued Sequential Access Method QT Queueing Theory QTAM Queued Teleprocessing Access Method QTY QuantiTY QUEL QUEry Language QUEX Query Update by EXample QUIC QUarter Inch Cartridge QUIP QUeue Interactive Procesor QUIP QUad In-line Package QWERTY standard type keyboard R Reader R Right R Request R Read R&D Research and Development R&E Research and Engineering R&T Research & Technology R-S Reset-Set R/W Read/Write RACE Rapid Automatic Checkout Equipment RACE Random Access Computer Equipment RACF Resource Access Control Facility RAD Rapid Access Disk RAD Random Access Drive RAD Random Access Data RADAR RAdio Detection And Ranging RADAS Random Access Discrete AddresS RADDA RAdio Detection Discrete Address RAI Random Access and Inquiry RAIR Random Access Informational Retrieval RALU Register-equipped Arithmetic Logic Unit RAM Random Access Memory RAMAC RAndoM ACcess RAMAC Random Access Method for Accounting and Control RAMIS Rapid Access Management Information System RAMPS Resource Allocation in Multi-Project Scheduling RAMS Record Archival Management System RAS Row Address Strobe RAS Reliability, Accessability, Security RAS Resource Analysis System RAS Remote Access System RAT Resource Allocation Tool RAYDAC RAYtheon Digital Automatic Computer RBA Relative Byte Address RBMS Remote Bridge Management Software RBOC Regional Bell Operating Company RC Resistance Coupled RC Resistance-Capacitance RC Resistor Capacitor RC Radio Controlled RCAC Remote Computer Access Communications service RCC Radio Common Carrier RCD Receiver-Carrier Detector RCP Racket Co-Processor (Racket Computers) RCS Reloadable Control Storage (IBM) RCTL Resistor-Capacitor-Transistor Logic RCVR ReCeiVeR RD ReaD RDC Remote Data Connector RDE Recieved Data Enable RDF Record Definition Field RDOS Real-time Disk Operating System RDR ReaDeR RDY ReaDY REC RECord RECFM RECord ForMat REF REFerence REG REGister REGIS REmote Graphics Instruction Set REL RELease REM REMainder REMIS Real Estate Management Information System REMOS REsources Management On-line System REQUEST REstricted English QUESTion-answering RES Remote Entry Services (IBM) REW REWind REXX (a VM/CMS procedural language) RF Radio Frequency RF Revisable Form RF Run Flagazine RFC Request For Comment RFD Ready For Data RFI Request For Information RFI Report/FIle language RFI Radio-Frequency Interference RFMS Remote File Management System RFQ Request For Quote RFT Revisable Form Text (IBM) RGB Red-Green-Blue (color monitor) RGP Remote Graphics Processor RH Report Heading RI Reliability Index RI Read In RI Ring Indicator RIM Read In Mode RIP Raster Image Processor RIP Routing Image Protocol RISC Reduced Instruction Set Computer RJE Remote Job Entry RJEF Remote Job Entry Function RJP Remote Job Processing (IBM) RL Relocation Library RLC Repeater Line Card RLD ReLocation Dictionary RLIN Research Libraries Information Network RLL Run Length Limited RLN Remote Lan Nodes RLSD Received Line Signal Detector RM Record Mark RM Records Management RMAS Retail Merchandise and Audit System (IBM) RMF Resource Measurement Facility RMM Read Mostly Memory RMN Remote Microphone Network RMS Root Mean Square RMS Resource Management System RMU Retention Memory Unit RMW Read-Modify Write RNMC Redundant Network Management Channel RO Read Only RO Receive Only RO Read Out ROBIN Remote On-line Business Information Network ROCF Remote Operator Console Facility (IBM) ROCR Remote On-line business information network ROI Return On Investment ROIT Return On Investment Time ROM Read-Only Memory ROS Read Only Storage ROS Resident Operating System ROTR Receive Only Typing Reperforation RPC Register Protective Circuitry RPC Remote Procedure Call RPG Report Program Generator RPG II Report Program Generator (version two) RPG III Report Program Generator (version three) RPQ Request for Price Quotation RPROM ReProgramming Read Only Memory RPS Rotational Position Sensing RPS Realtime Programming System (IBM) RPT RePorT RR Register to Register instruction RR Remove & Replace RRDS Relative Record Data Set RRU Remington Rand Univac RS Recommended Standard RS Reset Key RS Remote Station RS-232 Recommended Standard interface number 232 RSCS Remote Spooling Communication Subsystem RSF Remote Support Facility RSL Requirements Specifications Language RSP Remote Switching Partition RSS Remote Speaking System RSS Resource Security System RT Register Transfer RT Run Time RT Read Tape RT Real Time RT Remote Terminal RT/IOC Real-Time Input/Output Controller RTAM Remote Teleprocessing Access Method RTB Read Tape Binary RTBM Real-Time Bit Mapping RTC Real-Time Command RTC Relative Time Clock RTCC Real-Time Computer Complex RTCF Real-Time Computer Facility RTCS Real-Time Computer System RTCU Real-Time Control Unit RTD Real-Time Display RTDHS Real-Time Data Handling System RTE Real-Time Execution RTG Routing Table Generator RTIS Real-Time Information retrieval System RTL Real-Time Language RTL Resistor-Transistor Logic RTM Real-Time Monitor RTM Registered Transfer Module RTMOS Real-Time Multiprogramming Operating System RTOS Real-Time Operating System RTS Request To Send RTS Remote Takeover System RTS Real-Time System RU Request/response Unit RUN (electronic magazine on disk) RW Read-Write RWC Read-Write-Create RWM Read-Write Memory RXD ReceiveD Data S Sign S Switch S Sequential S Second S-R Set-Reset S/R SubRoutine S/S Start/Stop SAA Systems Applications Architecture SAA/CUA SAA / Common User Access SAC Storage Access Channel SAC Storage Access Control SAC Scriptomatic Addressing Computer SAC Store And Clear accumulator SACINET Strategic Air Command Intelligent NETwork SAD Serial Analog Delay SADF Semi-Automatic Document Feeder SAH Standard Average Hour SAH Standard Allowed Hours SAI Sabre Assisted Instruction SAKI Self-organizing Automatic Keyboard Instructor SAL Systems Assembly Language SAL Symbolic Assembly Language SALU Structured Assembly Language Utilities SAM Sequential Access Method SAM Symantec Anti-virus for MacIntosh SAM Secure Access Multiport SAM Sort And Merge SAM System Activity Monitor SAP Service Advertising Protocol SAP Symbolic Assembly Program SAS Statistical Analysis System SAU Secure Access Unit SAW Surface Accoustic Wave SB3 System Base 3 (Unisys) SBA System for Business Automation SBC Signal Board Computer SBC Small Business Computer SBI Synchronous Bus Interface SBN Standard Book Number SBS Satellite Business System SCC Specialized Common Carrier SCC Storage Connecting Circuit SCC Satellite Communications Controller SCL System Communication Location SCM Segment Control Module SCM Small Core Memory SCN Sears Communications Network SCN Specifications Change Notice SCOMP Secure COMmunications Processor SCOPE Simple COmmunications Programming Environment SCOTT Single Channel Objective Tactical Terminal SCP Service Control Point SCP Systems Control Program SCPC Single Channel Per Carrier SCPM Systems Cooperative Program Marketing SCR Silicon Controlled Rectifier SCS Service Card System SCS Small Computer System SCSI Small Computer System Interface SCT Subroutine Call Table SCTO Soft Carrier Turn Off SDA Shared Data Architecture (Teradata) SDA Source Data Automation SDA Screen Design Aid SDAV Systems Design Automation Vendor SDE Software Development Environment SDF Screen Definition Facility SDI Source Data Information SDI Strategic Defense Initiative SDI Standard Data Interface SDI Selective Dissemination of Information SDI Super Data Interchange SDK Software Development Kit SDLC Synchronous Data Link Control SDM Schiedam..... SDM Systems Development Methodology SDM Subrate Data Multiplexer SDMA Storage Device Migration Aid SDN Software Defined Network SDS Scientific Data Systems SDT Systems Development Tool SDT Source Data Terminal SE Service Engineer SE System Extension SE Software Engineering SE Systems Engineer SEAC Standards Eastern Automatic Computer SEC SECond SECAM SEquential Coleur Avec Memoire SECT SECTion SEF Source Explicit Forwarding SEG SEGment SEL SELect SEQ SEQuence SEQUEL Structured English QUEry Language SERV SERVice SEU Source Entry Utility SFD Symbolic File Directory SFQL Structured Full-text Query Language SFT System Fault Tollerant SFU Scheduler Function Unit SGND Signal GrouND SH Switch Hook SI (international system of units) SI Shift In SIC Standard Industry Classification SID Swift Interface Device SIE Start Interpretive Execution SIG SIGnal SIM Semantic Information Manager SIM SIMulation SIM Signal Interface Module SIMM Single In-line Memory Module SIMP Satellite Information Message Protocol SIMULA SIMUlation LAnguage SIO Serial Input/Output SIP Systems Integration Plan SIP Simulated Input Processor SIP Symbolic Input Program SIP Single In-line Package SIP Strategic Information Plan SIPO Serial In Parallel Out SIR Statistical Information Retrieval SIR Selective Information Retrieval SIS Strategic Information System SISD Single-Instruction Stream Data SISO Serial In Serial Out SJF Shortest Job First SL Storage Location SLAM Simulation Language for Alternative Modeling SLIP Serial Line Internet Protocol SLIP Serial Line Internet Protocol SLR Simple Left-to-Right SLR Service Level Reporter SLSI Super Large Scale Integration SLT Solig Logic Technology SM Shared Memory SMART System Management And Review Technique SMART System Monitoring And Reporting Tool SMB Server Message Block SMD Scheduling Management Display SMDR Station Message Detail Recording SMDS Switched Multimegabit Data Service SME Society of Manufacturing Engineers SMF Systems Management Facilities SMFF Script Mathematical Formula Formatter SMP System Modification Program SMP Symetric Multiprocessing (HP) SMRT Signal Message Rate Timing SMS System-Managed Storage (IBM) SMT Segment Table Map SMT Station Management Technology (IEEE) SMT Surface Mount Technology SMTE Segment Table Map Entry SMTP Simple Mail Transfer Protocol SMTP Simple Mail Transfer Protocol (Novell) SMU Space Management Utilities SN Switching Network SNA System Network Architecture SNAMON System Network Architecture MONitor SNAP Standard Network Access Protocol SNF Shared Network Facilities SNF Shared Network Facilities agreements SNI SNA Network Interconnection SNI Siemens Nixdorf Informatiesysteme A.G. SNMP Simple Network Management Protocol SNOBOL String Oriented Symbolic Language SNR Signal/Noise Ratio SO Shift-Out SO Serial Output SOA State Of the Art SOAP Symbolic Optimizer & Assembly Program SOB Start Of Block SOC System On a Chip SODA System Optimization & Design Algorithm SOH Start Of Header SOM Self Organizing Machine SONET Synchronous Optical NETwork SOP Standard Operating Procedure SOP Study Organization Plan SOR Successive OverRelaxation SOS Share Operating System SOS Symbolic Operating System SOS Silicon-On-Saphire SP Space Character SP Structured Programming SP Start Point SP Single Purpose SPARC Scalable Processor ARChitecture SPC System Professional Computer SPC Stored Program Command SPC Stored Program Control SPEC SPECification SPF Structured Programming Facility SPI System Performance Instrument SPKR SPeaKeR SPL Simple Programming Language SPM Source Program Maintenance SPM Set Program Mask SPOC Space Shuttle onboard Personal Computer SPOOL Simultaneous Peripheral Operation On Line SPQC Statistical Process & Quality Control SPS Stand-by Power Source SPS Symbolic Programming System SQA Software Quality Assurance SQC Statistical Quality Control SQD Signal Quality Detector SQL Structured Query Language (IBM) SQL/DS Structured Query Language/Data System (IBM) SQUARE Specifying QUeries As Relational Expressions SQUID Superconducting QUantum Interference Device SR Status Register SRDM Sub-Rate time-Division Multiplexer SRFT Shortest Remaining Time First SRL System Reference Library SRM System Resources Manager SROS Seybold Report on Office Systems SRPI Server-Requester Programming Interface SRT Signal Requests Terminal SS Solid State SS Storage to Storage instruction SS/DD Single-Sided/Double-Density SS/SD Single-Sided/Single-Density SSB Single SideBand SSD Solid state Storage Device SSDA Synchronous Serial Data Adapter SSDD Solid State Disk Drive SSEC Selective Sequence Electronic Calculator SSI Small-Scale Integration SSI Software Systems Interface SSL Solid Statement Library SSM Set System Mask SSP Scientific Subroutine Package SSP Structured Support Program SSR Solid State Relay SSX/VSE Small System eXecutive/virtual Storage Extended ST Standard Time ST System Test ST Segment Table ST STart STA Spanning Tree Algorithm STAIRS STorage And Information Retrieval System (IBM) STAM Shared Time Allocation Manager STAR STratus Application Resource STAR Self Testing And Repair STATIC RAM STATIC Random Access Memory STC Standard Transmission Code STD STanDard STD Subscriber Trunk Dialing (UK) STDM Synchronous Time Division Multiplexer STE Standard Terminal Equipment STED Specialized Technique for Efficient Typesetting STEP Sperry Terminal Emulation Package STI Scientific & Technical Information STM System Master Tape STO Sales Training Orientation STOR STORage STORM STatistically ORiented Matrix program STP Segment Table Register STP Selective Tape Print STP Shielded Twisted Pair STP System Training Program STR Synchronous Transmit Recieve STRESS STRuctural Engineering Systems Solver STRUDL STRUctural Design Language STS Shared Tenant Services STTL Standard Transistor-Transistor Logic STX Start of TeXt SU Storage Unit SU Signalling Unit SU Selectable Unit (IBM) SUB SUBtract SUB SUBroutine SUM Symantec Utilities for MacIntosh SUM II Symantec Utilities for MacIntosh version II SUN OS Sun Operating System SURF System Utilization Reporting Facility SVA Shared Virtual Area (IBM) SVC Switch Virtual Circuit SVC SuperVisor Call SVD Simultaneous Voice/Data SVFS System V File System SVID System V Interface Definition (AT&T Unix) SVR4 System V for Release 4 SVS Single Virtual Storage (IBM) SW Status Word SW Shareware SWAC Standards Western Automatic Computer SWIM Super Wozniac Integrated Machine SYLK SYmbolic LinK SYN SYNchronous SYNC SYNChronize SYSGEN SYStem GENeration SYSINFORF subSYStem INFormation Retrieval Facility SYSLIB SYStem LIBrary SYSLOG SYStem LOGic SYSMON SYStem MONitor SYSOP SYStem OPerator SYSOUT SYStem OUT SYSTEM IPO SYSTEM Installation Productivity Option (IBM) T Terminal T Time T&E Test & Evaluation T-A-C The Application Connection T/DOS Tape/Disk Operating System T/W TeletypeWriter T3 (digital Transmission line 44.736 Mbps) TA Training Analyst TAC Telenet Access Controller TAC The Application Connection TADI Time Assigned Data Interpolation TADS Teletypewriter Automatic Dispatch System TADS Test And Debug System TAF Terminal Access Facility (IBM) TAG Text And Graphics TAL Telecommunications Access Language TAOS Transportation's Automated Office System TAS Telephone Answering Service TASI Time Assigned Speech Interpolation TAT Turn Around Time TAXIR TAXonomic Information Retrieval TB TeraBytes (one Trillion Bytes) TBL TaBLe TBM TeraBit Memory TBMT Transmitter Buffer Empty TBS Terminal Business System (IBM) TC Tactical Computer TC Transmission Control TC TeleCommunications TC Terminal Computer TC Transfer Control TC Terminal Controller TC PIP True Color Picture-In-Picture TCAM Telecommunications Access Method (IBM) TCB Task Control Block TCDMS TeleCommunications/Data Management System TCF Terminal Configuration Facility (IBM) TCF Transparent Computing Facility TCM Thermal Conduction Module TCP Tape Conversion Program TCP/IP Transmission Control Protocol/Internet Protocol TCPC Tab Card Punch Control TCS Terminal Control System TCS-ACF Telecommunications Control System-ACF TCU Tape Control Unit TCU Transmission Control Unit TD Transmitted Data TD Tabular Data TDM Text & Date Messaging TDM Time Division Multiplexing TDMA Time Division Multiple Access TDR Transmit Data Register TDRS Tracking & Data Relay Satellite TE Test Equipment TE-2 Terminal Equipment 2 TE-X Terminal Equipment X TECH TECHnology TECS Treasury Enforcement & Control System TELAPI TELente Application Programming Interface TELCO TELephone COMpany TELEX TELeprinter (teletypewriter) EXchange service TEMP TEMPorary TERA Trillioen TESS Total Engineering Support System TEXAN TEXas Agency Network TFEL Thin Film Electroluminescent Device THX Techmar Helical System TI Type In TIA Technology Impact Analysis TIC Token-ring Interface Coupler TIE Tape Import/Export (Novell) TIES Total Integrated Engineering System TIF The Information Facility TIFF Tagged Image File Format TIGA Texas Instruments Graphic Architecture TIM Token Interface Module TIO Test Input/Output TIP Terminal Interface message Processor TIP Technical Information Processing TIP Total Information Processing TIPC Texas Instruments Personal Computer TIPS Tailored Implementation & Planning Service TIPS Truevision Image Paint Software TIPS Text Information Processing System TIS Total Information System TITAN Trust Information & Transaction Accounting Network TIU Tape Identification Unit TL Tape Library TLB Translation Lookaside Buffer TLS Thesaurus & Linguistic integrated System (IBM) TLU Table Look Up TM Tape Mark TMA Telephone Management & Accounting TMCC Time-Multiplexed Communication Channel TME Transmission MEasurement unit TMF Transaction Monitor Facility TMP Thermo-Magnetic Printing TMR Triple Modular Redundancy TMS Telecommunications Message Switcher TMS Telephone Management System TMU Time Measurement Unit TNF Third Normal Form TNS Transaction Network Service TOC Table Of Contents TOD Time-Of-Day TODS Transactions On Database Systems TOE Total Operating Expense TOMS Transactions On Mathematical Software TOMUS The Online Multiple User System TOP Technical & Office Protocol TOP Technical Office Protocol TOPLAS Transactions On Programming Languages And Systems TOS Tape Operating System TOS Transparrent Operating System TOS Terminal Oriented Software TOS Terminal Oriented System TOSS Total Office Support System TP Transaction Processing TP TaPe TP Technical Publication TP Test Procedure TP TeleProcessing TP Twisted Pair TPF Transaction Processing Facility TPMS Transaction Processing Management System TPNS TeleProcessing Network Simulator TPS Transaction Processing System TRAP Tandem Recursive Algorithm Process TRMM Token Ring Management Module TSO Time Sharing Option TSO/E Time Sharing Option/Extensions TSR Terminate & Stay Resident TSSF Tape Staging & Storage Facility (NASA) TSTN Triple Super Twist Nematic TTF Terminal Transaction Facility (IBM) TTL Transistor-Transistor Logic circuit TTS Transaction Tracking System TTS Tailored-To-Suit TTY TeleTYpewriter TU Tape Unit TUC Terminal Usage Charge TUT Transistor Under Test TVT TeleVision Typewriter terminal TVT TeleVision Tube TWT Travelling Wave Tube TWX TeletypeWriter eXchange service TWX Teletype Communications TX Transmit TX (digital Transmission line X.544 Mbps) TXD Transmit Data TYMNET (TM) Timeshare Incorporated Network U Unit U Utility UA User Agent UADPS Uniform Automatic Data Processing System UART Universal Asynchronous Receiver/Transmitter UBC Universal Buffer Controller UC Upper Case UCA User Computer Address UCB Unit Control Block UCL User Control List UCLA University of California Los Angeles UCOL Ultrawideband Coherent Optical Lan UCS Universal Classification System UCS Universal Character Set UCW Unit Control Word UD Unremove Directory (Norton Utilities) UDC Universal Decimal Classification UDK User Defined Key UDLC Univac Data Link Control UDP User Diagram Protocol UDP User Datagram Protocol UDS Universal Data Systems UGA Ultra Graphics Adaptor (Methus Corp.) UHF Ultra-High Frequency UHQ Ultra-High Quality UIL Univac Interactive Language UIM Ultra-Intelligent Machine ULA Uncommitted Logic Array ULSI Ultra Large Scale Integration ULX User Language X UNA Universal Network Architecture (Novell) UNINET (R) network of United Telecom Company UNIVAC UNIVersal Automatic Computer UNIX UNi (plus) MultIX (AT&T) UNMA UNified Management Architecture (AT&T) UP User Program UPC Universal Product Code UPL Universal Programming Language UPS Uninterruptible Power System UR Unit Record URL Universal Resource Locator US Unit Separator USAS Univac Standard Airline System USASCII USA Standard Code for Information Interchange USDC Universal Switched Data Capability USOC Universal Service Ordering Code USRT Universal Synchronous Receiver/Transmitter UT Up Time UT UTility UTP Unshielded Twisted Pair UTS Universal Timesharing System UTS-M Universal Timesharing System for Mainframes UTS-S Universal Timesharing System for Superminis UTTC Universal Tape-to-Tape Converter UUCP UNIX-UNIX Copy Protocol UUT Unit Under Test V Video V Virtual V Volt V Voice V&H Vertical & Horizontal V+TU Voice plus Teleprinter Unit V-EMM Virtual Expanded Memory Manager V.24 (CCITT standard protocol for analog circuits) V/F Voltage to Frequency converter VA Video Amplifier VA Volt Ampere VAB Voice Answer Back VAC Value-Added Carrier VACC Value-Added Common Carrier VAD Value-Added Dealer VAL Vicarm Arm Language VAN Value-Added Network VANS Value-Added Network Service VAP Value-Added Process VAR Value-Added Reseller VAR VARiable VASD Value-Added Systems Distributor VAT Virtual Address Translation VAT Voice Activated Typewriter VAU Volume Allocation Unit VAV Visicalc Advanced Version VAX Virtual Address eXtended VAXBI VAX Bus Interface VB Visual Basic VBI Vertical Blanking Interval VC VisiCalc VCNA VTAM Communications Network Application VCR Video Cassette Recorder VCS View Control System VCS Vax Cluster Control System VDA/D Video Display Adapter with Digital enhancement VDG Video Display Generator VDI Virtual Device Interface VDL Vienna Definition Language VDT Video Display Tube VDT Video Display Terminal VDU Video Display Unit VDU Visual Display Unit VFPA Vector Floating Point Accelerator VFU Vertical Format Unit VGA Video Graphics Array VHD Very High Density VHF Very High Frequency VHM Virtual Hardware Monitor VHS Video Home System VHSIC Very High Speed Integrated Circuit VIC Variable Instruction Computer VIDA VAX-to-IBM Access VIDAC VIrtual Data Acquisition & Control VIDAC Visual Information Display And Control VIDAT VIsual DATa acquisition VIM Vendor Independent Messaging VINES VIrtual NEtwork System VIO Virtual Input Output (IBM) VIP Vendor Involvement Program VIP Variable Information Processing VIP Visual Information Projection VIPP Variable Information Processing Package VISC Visualization In Scientific Computing VL Volume Label VLF Very Low Frequency VLP Video Long Player VLSI Very Large Scale Integration VM Virtual Machine VM Virtual Memory VM/370 Virtual Machine/370 VM/AS Virtual Machine/Application System VM/BSE Virtual Machine/Basic System Extensions VM/IFS Virtual Machine/Interactive File Sharing VM/RTM Virtual Machine/Real Time Monitor VM/SE Virtual Machine/System Extension VM/SP Virtual Machine/System Product VM/XA Virtual Machine/eXtended Architecture VMA Virtual Machine Assist VMAP VM performance Monitor Analysis Program VME/B Virtual Memory Environment B VMM Virtual Machine Monitor VMPPF Virtual Machine Performance Planning Facility VMS Virtual Memory System VMT Virtual Memory Technique VMTSS Virtual Machine Time-Sharing System VMX Voice Message eXchange VNCA VTAM Node Control Application VNET Virtual NETwork VNL Via Net Loss VODACOM VOice DAta COMmunication VODS Video Operator Distress Syndrom VOL VOLume VOM Volt-OhmMeter VOR Voice-Operated Relay VOS Voice-Operated Switch VOX Voice-Operated xontrol VP Ventura Publishing VPA Volume Purchase Agreement VPN (TM) (US Telecom) Virtual Private Network VPSS/VF Vector Processing SubSystem/Vector Facility VPU Video Processing Unit VPUG Ventura Publishing User Group VQL Variable Quantizing Level VR Voltage Regulator VRAM Video Random Access Memory VRC Visible Record Computer VRC Vertical Redundancy Check VS Variable Speed VS Virtual Storage VS2 Virtual Storage 2 VSAM Virtual Storage Access Method (IBM) VSAT Very Small Aperature Terminal VSC Video System Controller VSC Variable Speed Control VSE Virtual Storage Extended (IBM) VSE/AF Virtual Storage Extended/Advanced Function VSE/PT Virtual Storage Extended/Performance Tool VSI Virtual Screen Interface VSPC Visual Storage Personal Computing VSS Voltage for Substrate & Sources VSX Virtual Storage X VT Video Tape VT Video Terminal VTAM Virtual Telecommunications Access Method (IBM) VTAME Virtual Telecommunications Access Method Entry VTOC Volume Table Of Contents (VTOC) VTR Video Tape Recorder VTS/MA Virtual Terminal Session/Multiple Access VU Voice Unit VUP Vax Units of Performance VW (R) VolksWriter VWL Variable Work Length VXO Variable Crystal Oscillator W Word W Write W Watts W Wide W/S Words per Second W95 Windows 95 W98 Windows 98 WADS Wide Area Data Service WAIS Wide Area Information Servers WALT West's Automatic Law Terminal WAM Windows Accelerator Module WAN Wide Area Network WANS Wide Area NetworkS WAP Work Assignment Procedure WATFIV WATerloo Fortran IV (Waterloo University) WATFOR WATerloo FORtran WATS Wide Area Telephone Service WATS Wide Area Telecommunications Service WB Wide Band WBMF Wang Band Management Facility WBS Work Breakdown Structure WBX Wang Business eXchange WCS Writable Control Store WD WorD WE Write Enable WESTLAW WEST's LAW research database WFF Well-Formed Formula WILS Wang Interactive Learning System WIN Wollogong Integrated Network WINLOC WINdows Local Office Connection (WANG) WINTEL WINdows inTEL technology WIP Work In Progress WIS Worldwide Information System WITA WANG Information Transfer Architecture (WANG) WITS Washington Interagency Telecommunication System WIX Windows Information eXchange WMS Warehouse Management System WNIMS Wide area Network Interface ModuleS WNT Windows New Technology WO Work Order WOM Write Only Memory WOM Write Optional Memory WORM Write Once Read Many WP Word Perfect WP Word Processing WP/AS Word Processing/Administrative Support WP/DP Word Processing/Data Processing system WP/OS Word Processing/Office Systems WPAAS Word Processing And Administrative Support system WPG WordPerfect Graphics format WPM Words Per Minute WPS Workstation Publishing System (IBM) WPS Words Per Second WQF Workstation Query Facility WR WRite WRC Workstation Resource Center WRU Who Are You WS Work Space WS Working Storage WS-30 WANG System 30 WSF WorkStation Facility WSMIS Weapon Systems Management Information System WSN WANG System Networking WSS WANG Station Sets WTO Write To Operator WTOR Write To Operator with Repl WWMCCS WorldWide Military Command & Control System WWW World Wide Web WYSIWYG What You See Is What You Get X-OFF Transmitter OFF X-ON Transmitter ON X.25 communications protocol #25 (CCITT) XA eXtended Architecture XAIE Xerox Artificial Intelligence Environment XBM eXtended Basic Mode XDE eXtended Development Environment XDP eXtended Data Processing XFER TransFER XI X.25 SNA Interconnection XID eXchange Station Identification XMIT TransMIT XMS eXtended Memory Specification XMTL TransMiTtaL XNS Xerox Networking System XNS Xerox Network System XOR eXclusive OR XPG2 Open Productivity Guide Version 2 XR eXternal Reset XRF eXtended Recovery Facility (IBM) XRF eXtended Reliability Feature XT eXtended Technology XTAL CrysTAL XTC eXternal Transmit Clock XTEN Xerox TElecommunications Network XTP eXpress Transfer Protocol XTRAN eXperimental language (IBM) XUI X User Interface (DEC) XVMX Xerox Voice Message eXchange (Xerox) YACC Yet Another Compiler-Compiler YIG Yttrium-Iron-Garnet YR YeaR YTD Year To Date YY Year YY/MM/DD Year/Month/Day Z Zoom Z2 Zuse 2 (electromechanical calculator (Konrad Zuse) Z3 Zuse 3 (electromechanical programmed calculator) Z4 Zuse 4 (electromechanical programmed calculator) Z8 Zilog 8 bit one-chip microcomputer Z80 Zylog 8 bit microprocessor Z800 Zylog 8 bit microprocessor Z8000 Zylog 8 bit microprocessor ZBI Zero Bit Insertion ZBTSI Zero Bit Time-Slot Insertion ZIF Zero Insertion Force ZIP Zig-zag In-line Package ZX Zuse X (mechanical calculator)