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EI Z-NEWS 801 6 July 1987
==============================================================================
Facts About SemiDisk DT42 Computer System. The Deep Thought 42 single board
computer from Semidisk Systems is the best CP/M-compatible computer ever
designed. Sounds like another grandiose advertising claim, but no! Look at
these features:
DT42 Hardware
The DT42 is a Single Board Computer, but what an SBC! Sized at 5.75" by 8",
it uses only one ampere at +5 volts with a complete complement of chips.
* 9.216MHz Hitachi HD64180 cpu gives you computational throughput beyond
that of a 12MHz Z80 machine. And, unlike other 9MHz 64180 designs on the
market, this machine has no RAM wait states to slow you down (one RAM wait
state slows most other designs by 30%). 12.288MHz will also be supported when
faster 64180 chips are available--better than a 16MHz Z80!
* SBC comes with an interface permitting simultaneous operation of four
5.25" 48tpi or 96tpi and four 8" single or double sided floppy disk drives.
Eight floppies at once! Additionally, the 1.2Mb 5.25" floppy drive models
(such as those used in the PC-AT) are also supported.
* 512k-byte RAM is standard, with 428k available as RAMdisk. An optional
disk emulator expansion card adds 8 megabytes of ultra-fast storage, with
optional battery back-up. The awesome processing speed combined with this
large amount of RAMdisk makes you wonder why the fuss over hard disk drives.
* If you want a hard disk, the DT42 supports this also. An included on-
board SASI port interfaces directly to popular hard disk controllers made by
Adaptec and Xebec to give you megabytes of hard disk storage.
* Communication facilities include 4 serial ports and a parallel output
port. Two of the serial ports can accommodate speeds in excess of 300
kilobits per second; and the DT42 overcomes a shortcoming of 9MHz 64180
designs and allows you to run serial ports at 38,400 baud. One serial port
connects to an optional on-board video display manager and keyboard
controller. Thus, a RS-232 terminal is not required, though one can be used
if desired without software changes.
* Optional Dallas Semiconductor "Smartwatch" real time clock/calendar
chip, and additional EPROM sockets are available.
DT42 Software
A special version of the advanced Z-System disk operating system is available
with the DT42. This includes ZCPR 3.3 and ZRDOS 2.0 and over 90 utility
programs. This version of Z-System, called the Hyperspace Z-System, places
ZRDOS outside of the 64k-byte TPA space. Z-System is modern software
technology, packs an incredible amount of power and features, and will give
you tremendous flexibility and convenience compared to CP/M or MS-DOS.
* The BIOS of the DT42 supports the large amounts of RAMdisk, hard disk,
and floppy drives available. Communication channels are interrupt-driven;
CP/M-compatible logical devices such as LST: and CON: are easily redirected;
and the majority of the BIOS resides outside of the 64k-byte TPA space.
* Because of the advanced characteristics of the Hyperspace Z-System and
the BIOS, CP/M-compatible application programs see 57.5k-bytes free memory,
even with a full-featured (5k overhead) ZCPR3 implementation including IOP and
RCP support.
* Very powerful BIOS-resident disk handling software supports eight
different floppy disk formats without any special conversion software. You
can directly read, write, and copy between formats such as Kaypro, Osborne, 8"
single density, etc.
* Utility programs written for the DT42 include FVC, CONFIG, and
HDFORMAT. FVC allows you to format, verify, and track-to-track copy the
different floppy disk formats; CONFIG permits customization of the system
software such as reassigning logical disks (e.g., any physical device such as
the RAMdisk could be set as drive A:, drive B:, etc.), setting communication
ports parameters like baud rate, etc.; and HDFORMAT, a very flexible SASI/SCSI
command editor that communicates with SASI/SCSI devices attached to the DT42.
* The EPROM-resident DT42 Monitor allows you to examine and modify memory
within the full 512k-bytes; auto-boots the Z-System (if available) when the
hardware is reset; and contains important debugging-style commands for setting
breakpoints, tracing program execution, and uploading code. You can switch
between the Monitor and Z-System at any time.
To find out more about the DT42, call or write:
SemiDisk Systems, Inc.
11080 SW Allen Blvd.
Beaverton, Oregon 97005 USA
503/626-3104
No other computer made possesses the raw power and features of the DT42.
This machine is blindingly fast, and the Hyperspace Z-System represents a
significant and positive new development in CP/M-compatible computing.
Combined with standard CP/M-compatible applications such as the forthcoming
WordStar 4.0 or dBase II, Multiplan, Turbo Pascal, Turbo Modula-2, etc., this
machine will provide for your computing needs for years to come.
------------------------------------------------------------------------------
Z-User's Corner. ARUNZ v0.9, VERROR v1.7, and ZCPR v3.3 combine to produce a
smooth user interface, smoother far beyond that possible with either CP/M v2.2
or MS-DOS v3.2. But, you may wish to try new Z33ERROR that comes with v3.3
package instead of VERROR. Either error handler offers quick recovery from an
unrunnable command in a multiple command line, especially useful when
developing aliases and menus lines.
New ECHO command available in Z33RCP, the RCP with the extended H
facility (Z-News 709-2), has lower-case output to printer and console feature.
Here's how the Z33RCP.LIB looks in the ECHO options area.
; 'ECHO' command
; This command sends characters to the console or list device. If ECHOLST is
; enabled, then code is included for sending characters to the LST device.
; Characters normally go the the console device and are normally upper or lower
; case depending on the setting of UPCASE. The command line can have special
; command sequences to toggle the case of the output and to change the
; destination between the console and printer. Any other character following
; the command character will be sent as is. For the normal setting of the
; equates below (upcase/yes, cmdchar/%, prtchar/P, crtchar/C, lcasech/>,
; and ucasech/<) an example command line would be:
; A0:ROOT>ECHO T%>HIS IS A TEST^M^J^IDONE%PONE, TWO, %<THREE
; The following text would be echoed to console (including carriage return,
; linefeed, and tab characters, '|' indicates the left margin):
; |This is a test
; | done
; The string "one, two, THREE" would be sent to the printer.
echolst equ yes ; Allow sending characters to LST device
upcase equ yes ; Initial case of output
cmdchar equ '%' ; Character to flag case change
prtchar equ 'P' ; Character to start sending output to
; the printer (must be upper case)
crtchar equ 'C' ; Character to start sending output to
; the CRT (must be upper case)
ucasechar equ '<' ; Character after CMDCHAR that toggles
; subsequent output to upper case
lcasechar equ '>' ; Character after CMDCHAR that toggles
; subsequent output to lower case
Upper and lower case alphabet echoing of messages from aliases and menu
command lines dresses up your displays, makes them easier to read.
ZFILER, likely to replace VFILER as Z-System standard (if we have our
way), offers a macro facility that works on tagged files, to simplify file and
disk management. Look for it on your local Z-Node and, hopefully, on an
upcoming SUS diskette.
From The Mail Box. Van Vanhorn, Lynnwood, WA, takes issue with our view about
low sales of ANSI terminals (Z-News 708-1). "Wyse now outsells DEC, but that
includes all the VT-100 and VT-220 compatible terminals that Wyse is so busily
selling into the DEC [ANSI] marketplace!" Van, we have no way to determine
the product mix of Wyse's terminal sales. Though we know Bernard Tse, founder
of Wyse, we would not ask him such a proprietary question. We will be on the
lookout for an answer through other sources.
"Seduced by Z-News 709's assurance that the ZCPR 3.3 User's Guide tells
how to install...enclosed...a check for $49.00 is payment...to assure myself
of the continued reception of Z-News...as the trickle of 8-bit-system-related
information dwindles to a mere drip, your publication becomes a more and more
important source of such information," writes R.W. Odlin from Sedro-Woolley,
Washington. Thanks for your order. We will continue to bring you news
related to CP/M-compatible computing. Lots of upcoming ZCPR 3.3 things to
learn and report on. Remain tuned to this source...
A good newsletter is the community talking to itself.
It should contain humor, satire, and originality,
be descriptive and cleverly condensed, and be of good literary style,
but most of all it should be accurate in its reporting.
Hardware Beat. Conner Peripherals (Z-News 708-5) hires 100s of production
workers to keep up with demand for their super-fast, 25 msec average access
time, 3.5" hard drives--a Silicon Valley success story. DRAM has hard time
keeping up cost-wise, what with high value of Japanese yen. (CP's Finnis
Conner, along with Al Shugart, were founders of Seagate Technology.)
We knew it would happen. What: Sony Corp. has announced a 2" floppy disk
drive with capacity of 800k-bytes per side. Data transfer rate is similar to
a Winchester (hard) drive at 14.3 megabits per second. Power: 5 volts at one
ampere. Size: 2.5" x 3.5" x 1". When: drives start shipping before end of
year.
Information about Kodak's three 5.25" high-capacity floppy disk drives
(Z-News 309-4) can be obtained by calling 800/44KODAK, extension 990. These
drives hold 2.7, 5.4, and 10 megabytes of formatted data, are great for backup
of RAM and hard drives. Verbatim, Silicon Valley company owned by Kodak,
makes blank diskettes for these super-special drives. Speaking of these high-
capacity floppies, Jasmine Technologies, Inc., 555 De Haro Street, San
Francisco, CA 94107, offers the 10-megabyte Kodak, called MegaDrive, that
hooks up to a SCSI bus just like a hard disk drive. MegaDrive sells for only
$999.00. Blank disks are only $39.95, three for $109.95. Interested? Call
Jasmine at 415/621-4339.
Varityper, Division of AM International, 11 Mt. Pleasant Ave., East
Hanover, NJ 07936, 800/631-8134 or 201/887-8000, offers 600-dpi laser printer.
Called VT600, unit provides beyond near-typeset quality, has built-in 20-
megabyte hard disk to hold PostScript fonts. If you have to ask the price you
can't afford it.
At another end of scale, we can report with adequate authority that
Hewlett-Packard is readying a $995, 4-page per minute, 300-dot per inch Laser
printer. Mail order should put the unit below the $800 threshold to put near-
typeset quality printing in the hands of all who want it. "Power of the press
belongs to those who own one."
Software Beat. Doug Anderson of Anderson Techno-Products, Inc., 947 Richmond
Road, Ottawa, Ontario, K2B 6R1, Canada, offers a disk of software to turn your
computers into a local area network. Called "Poor Man's Network," it's just
the ticket priced at $69.00 to connect one CP/M computer to another. Works
with Z-System and CP/M v2.2, and requires a serial or parallel port on each
computer. Contact Doug (613/722-0690) for more information.
In Other Words. Many are old enough to have lived and experienced the coming
of age of digital computers. We have observed human folly at work: our
government spending millions on direct language translators, Russian to
English, overly optimistic natural language understanding projects, all
failed, are failing. Yes, all bogged down, because we missed the fundamental
point. Human language is used to describe mental images. Words are
abstractions of visual images, feelings, of our being, of our mental body, of
our inner consciousness. Human thought produced verbal language! Language is
not thought but its abstraction. Thinking is more than language. Language is
an inferior medium; it does encompass a small aspect of the human whole, but
so what?
There's so much more to our power of imagination than described by mere
words. We can simulate past, present, future from data in our memories. We
see--we have far vision! Not needing or using words, we paint images of
facts, events, people, and ideas.
Our electronic computing machines solve complex math equations, have
near-perfect memory; but, they can't handle problems of ordinary meaning
because they can't see. Seeing goes beyond language.
The old adage "A picture is worth a thousand words" is never really true.
The mystics of old, with their third "eye," were not scientists--they were
keen observers, seers of life, the way things are. Words, no matter how many,
do not ever fully describe what is seen.
If you can't express yourself verbally in words, either orally or in
writing, it means you can't communicate your sight to others. That's all it
means. Think for a moment what this means!
As an observation: people are remarkably results-oriented, but also
so short-sighted. We can and do act without thought or without consciousness.
Yes, we are that complex!
Our computers, after 30 years of intensive work on them, should have much
intelligence. But, let's face it--they have little intelligence. Why don't
they? Because the humans designing them--building the hardware and producing
the software--don't understand what intelligence is, how the human brain
functions. They have, in general, acted without knowledge or understanding.
Our computers, even the largest mainframes, are all with right-brains and
are playing at the game of being intelligent with a partial left-brain. (A
human's brain is thought to be organized into two halves: left, for
accumulating data and facts for logic; right, for accessing information into
contextual knowledge and understanding for wisdom.)
Humans are so fallible (fallen?), why make machines into human-like
thinking devices? We should be designing machines that go beyond the human or
is this just so much heresy!
"Whoever said, 'It is not whether you win or lose that counts,'
probably lost."--Martina Navratilova, Tennis World Champion.
==============================================================================
Of Angels and Eagles. Instead of examining past ethical dilemmas (good-by
LtCol Oliver L. North and Iran-Contra affairs), we would do better to get into
the habit of seeing a moral, an ethical dimension to every social or personal,
to every business or governmental situation and association. Set a high
standard and stick with it, no matter what. Over a period of time, we rest
easy compared to now.
Echelon, Inc. 885 North San Antonio Road Los Altos, CA 94022 USA
Telephone: 415/948-3820 Telex: 4931646 Z-Node Central (RAS): 415/948-6656
Trademarks: Little Board, Bookshelf, Ampro Computers; SB180, SB180FX, GT180,
Micromint; ON!, Oneac; DT42, The SemiDisk, Deep Thought 42, SemiDisk Systems;
XLR8, M.A.N. Systems; VAX, Digital Equipment; Macintosh, Apple; HD63484/64180,
Hitachi; Z80, Zilog; Z-System, Hyperspace Z-System, ZCPR3, ZRDOS, Z-Tools,
Zas, Zlink, Z-Msg, Term3, Quick-Task, NuKey, Turbo Modula-2, Lasting-Value
Software, Echelon; CP/M, Digital Research; Unix, AT&T; TurboROM, Advent;
Graphix Toolbox, Turbo Pascal, Borland Int'l; WordStar, MicroPro Int'l;
JetFind, Bridger Mitchell; PC-AT, IBM; Smartwatch, Dallas Semiconductor; MS-
DOS, Multiplan, Microsoft; dBase II, Ashton-Tate.
* *
Fly with Z!
* *
Z-News 801 is Copyright MCMLXXXVII Echelon, Inc. All Rights Reserved.
Permission to reprint, wholly or partially, automatically granted if source
credit is given to Echelon.