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- IBM PC DOS VERSION 3.2 03-19-1986 ANNOUNCEMENTS
-
- Today IBM announces the IBM Personal Computer Disk Operating
- System (DOS) Version 3.2. DOS 3.2 provides all of the
- functions contained in the prior version of DOS (3.1) and is
- a prerequisite for the IBM Token-Ring Network.
-
- Two new commands (REPLACE, XCOPY) have been added to aid in
- diskette and disk management. Some commands have been
- changed to improve usability.
-
- The BASIC interpreter program version 3.2 is shipped with
- DOS 3.2. A separately available BASIC Language Reference
- Manual 3.2 is announced.
-
- HIGHLIGHTS
-
- o Supersedes DOS 3.1 (DOS 3.1 and DOS 2.1 are still
- available)
-
- o Prerequisite for the IBM Token-Ring Network
-
- o Supports all members of the IBM Personal Computer family
-
- o Provides a new command (REPLACE) to replace all
- occurrences of a file on a disk. This greatly
- facilitates installing new versions of DOS or application
- programs.
-
- o Provides a new command (XCOPY) to allow copying of files
- from more than one subdirectory. This can be performed
- where the source and target drives are of different
- densities. This makes complete or periodic backups
- easier.
-
- o Provides for logical drive support. This allows a
- physical drive to be referenced by more than one device
- letter.
-
- o Removes default drive capability on FORMAT. When the
- FORMAT command is executed, the drive letter must be
- specified. This helps prevent accidental reformatting
- of a disk or diskette.
-
- o Provides for label checking when formatting a fixed
- disk. FORMAT will not proceed until the volume label is
- entered correctly by the user. This provides an extra
- check to avoid accidentally reformatting a fixed disk.
-
- o Several existing DOS commands are enhanced to provide
- greater usability and better error recovery.
-
- o BASIC has been enhanced to include the following
- support:
-
- - OPEN statement now includes support for IBM PC
- Network and IBM Token-Ring Network
-
- - EGA support is provided for enhanced modes via
- the PALETTE, PALETTE USING and COLOR statements
-
- - DOS extended error support is now provided
-
- SCHEDULE
-
- Availability: March 26, 1986
-
- DESCRIPTION
-
- The IBM Personal Computer Disk Operating System (DOS)
- Version 3.2 provides all of the functions contained in the
- prior version of DOS 3.1 and is a prerequisite for the IBM
- Token-Ring Network. The specific relationship of DOS 3.2 to
- DOS 3.1 is described below. DOS 3.2 supersedes DOS 3.1, and
- DOS 3.1 is still available.
-
- DOS provides required support for an application program to
- interface with the IBM Personal Computer hardware. It
- operates on all members of the IBM Personal Computer family.
- DOS provides a user with the ability to manage files on a
- disk or diskette (display directories, rename files, copy
- files, etc.). DOS also provides the ability to start up an
- application consisting of one or more programs linked
- together into a single load module.
-
- The DOS 3.2 product includes a BASIC language interpreter
- (Version 3.2) whose function is described in a separately
- available BASIC Language Reference Manual Version 3.2 (Item
- # 6280075). BASIC 3.2 has been enhanced to include EGA
- high-resolution graphics modes and support for IBM PC
- Network and IBM Token-Ring Network via the OPEN statement.
-
- DOS also provides Line Editor and Debug utility programs to
- aid in program development. A linker program is provided to
- convert language compiler relocatable modules to executable
- load modules.
-
- New commands are provided to support copying of files in
- more than one subdirectory, and to allow referencing of a
- physical device as multiple drive letters.
-
- SPECIFIED OPERATING ENVIRONMENT
-
- MEMORY REQUIREMENTS
-
- IBM PCjr* - 128KB of memory; on IBM Personal Computer -
- 96KB of memory (128 KB of memory recommended for a fixed
- disk); on IBM Portable Personal Computer - 256KB of
- memory; on IBM Personal Computer XT* - 128KB of memory;
- on IBM Personal Computer AT* - 256KB of memory.
-
-
- COMPATIBILITY
-
- DOS 3.1
-
- DOS 3.2 is an upward compatible enhancement to DOS 3.1 and
- contains maintenance updates to DOS 3.1. DOS 3.2 supersedes
- DOS 3.1, and DOS 3.1 is still available. DOS 3.2 is a
- prerequisite for the IBM Token-Ring Network. Storage
- requirements are more than DOS 3.1 (44KB vs. 36KB).
- Because the storage used by DOS 3.2 is 8KB greater, some
- programs may not fit in the same size machine. In these
- cases, a program may be divided into smaller segments, or
- more memory may be added to the system unit.
-
- DOS 3.2 is a Prerequisite for the IBM Token-Ring Network
-
- DOS 3.2 is a prerequisite for the following IBM Token-Ring
- applications:
-
- o IBM Token-Ring NETBIOS Program (6467037).
- o Advanced Program to Program Communications for the IBM
- Personal Computer (APPC/PC) (6467038).
- o IBM Token-Ring Network/IBM PC Network Interconnect
- Program (6467036).
- o IBM Asynchronous Communications Server Program for the
- IBM Token-Ring Network and IBM PC Network (1642003).
-
- DOS Environment Area Can Now Be Reserved
-
- A new option of the SHELL command allows this area to be
- expanded to 32KB. This allows the user to specify more
- extensive PATH commands, and PROMPT commands, and more SET
- commands without running out of environment space.
-
- The next message is:
-
- IBM PC DOS 3.2 AND BASIC MANUAL 3.2 03-19-1986 ANNOUNCEMENTS
-
- FORMAT
-
- The FORMAT command now requires the user to specify the
- drive letter; it no longer uses the current drive as the
- default. When formatting a fixed disk, the FORMAT command
- requires the user to specify the volume ID of the disk. A
- warning message is also displayed indicating that all data
- on the fixed disk will be lost if the user chooses to
- proceed with the formatting.
-
- REPLACE
-
- A new command, REPLACE, is provided to replace all
- occurrences of a file on a disk.
-
- SELECT
-
- The SELECT command has been enhanced to provide additional
- flexibility.
-
- XCOPY
-
- A new command, XCOPY, has been added to allow the user to
- copy files in more than one subdirectory. Options allow
- prompting for selective copying of files, verify after
- write, copying of lower level directories even when empty,
- copying of files modified after a specified date, copying of
- archived files only (with or without modifying the archive
- bit). XCOPY can be performed where the source and target
- drives are of different densities.
-
- Utilization of the BIOS Parameter Block (BPB)
-
- The BIOS Parameter Block is used to obtain media type
- information. This is a step to remove the dependency on the
- FAT ID for the media type information.
-
- I/O Control (IOCTL) Subfunctions
-
- DOS 3.2 implements subfunctions which enhances device
- independence. These subfunctions allow querying and
- changing of device parameters as well as logical device
- support. The subfunctions included are:
-
- o Get Device Parameters
- o Set Device Parameters
- o Read Track on Logical Drive
- o Write Track on Logical Drive
- o Format and Verify Track on Logical Drive
- o Verify Track on Logical Drive
- o Get Logical Device Number; determine if a device has
- more than one letter
- o Set Logical Device Number; suppress diskette change
-
- DOS 2.1
-
- DOS 3.2 is an upward compatible enhancement to DOS 2.1 and
- contains maintenance updates to DOS 2.1. DOS 3.2 requires a
- minimum of 44KB of user memory (DOS 2.1 is 24KB). Because
- the storage used by DOS 3.2 is 20KB greater, some programs
- may not fit in the same size machine. In these cases, a
- program may be divided into smaller segments, or more memory
- may be added to the system unit. DOS 3.2 contains the
- enhancements described above as well as those listed below:
-
- o File Sharing: Optional. Applies on a file basis.
- Provides full range of sharing possibilities.
-
- o Block Locking: Provides the ability to restrict access
- to all or part of a file when the file is opened in a
- shared mode.
-
- o Support for IBM PC Network/IBM Token-Ring Network:
- Allows addition of the IBM PC Network programs. These
- packages are available separately from DOS and require
- appropriate network hardware.
-
- o Background Print: Modified version of DOS 2.1 Print,
- which now supports path specifications and an internal
- programming interface.
-
- o Additional Interrupt 21H Functions: Additional function
- calls provide enhanced file management and support for
- the IBM PC Network environment.
-
- o Enhanced Error Recovery: Additional error reporting
- facilities to enhance support in the IBM PC Network
- environment.
-
- o Support for IBM Personal Computer AT* Hardware: 1.2MB
- diskette drives, non-volatile timer, larger fixed disk
- (size = 20MB vs. 10MB for DOS 2.1).
-
- o Basic Interpreter: Changes support IBM Personal Computer
- Enhanced Graphics Adapter, IBM PC Network, IBM Token-Ring
- Network, and DOS Extended Error facilities. The BASIC
- Language Reference Manual Version 3.2 contains a more
- detailed description of the changes.
-
- o VDISK: RAM disk. Allows use of part of storage for a
- virtual disk. Supports extended memory (above 1MB) on
- the IBM Personal Computer AT* for virtual disk.
-
- o Large Linker: Supports up to 1 megabyte.
-
- o SUBST: Substitute string.
-
- o JOIN: Splicing of directories.
-
-
- Limitations
-
- DOS Version 3.2 uses approximately 44KB of memory. This is
- an increase over DOS 3.1, DOS 3.0, and DOS 2.1. On some
- systems, this means that additional memory may be required
- to permit an application program to be loaded and executed.
- In general, 96KB to 128KB is the minimum memory requirement
- for DOS 3.2 systems.
-
- Prior to running a BASIC language program performing
- diskette I/O, one of the two language extensions, Disk BASIC
- or Advanced BASIC, must be loaded into memory.
-
- PUBLICATIONS
-
- DOS 3.2 is described in the following items, which are part
- of the DOS 3.2 package:
-
- - IBM Personal Computer Disk Operating System User's
- Guide (Level 3.2).
- - IBM Personal Computer Disk Operating System Reference
- (Level 3.2).
- - IBM Personal Computer Disk Operating System Quick
- Reference Card (Level 3.2).
-
- Also included in the DOS 3.2 packaging is a brochure and
- postage paid response card for a free copy of The Directory,
- the catalog of Personally Developed Software for IBM
- Personal Computers.
-
- An update to the DOS Technical Reference Manual includes
- information on DOS 3.2 and will be sent automatically to
- registered owners via the Update Information Service. This
- service provides updates to this manual until 60 days after
- the manual has been withdrawn from marketing.
-
- A separately available BASIC Language Reference Manual
- Version 3.2 (Item # 6280075) is also announced. This manual
- includes information about the BASIC Language support for
- IBM PC Network/ IBM Token-Ring Network, and EGA.
-
- CHARGES
- Single Unit*
- Item Number Description Price
-
- 6280057 IBM P/C DOS Version $95
- 3.2 - 5.25" Diskette
-
- 6280075 Basic Language $45
- Reference Manual
- Version 3.2
-
- * The Single Unit Price
- reflects the price currently in effect at IBM Product
- Centers for the purchase of single units, and is subject
- to change without notice. This price is for
- informational purposes only and shall not limit in any
- way the Dealer's ability to set its own price for the IBM
- product.
-