reisert@tallis.enet.dec.com (Jim Reisert) (03/17/90)
Disclaimer: This is a one-of-a-kind system. If you're not a
hardware hacker or an antique collector :-) you probably aren't
interested in this.
You get HARDWARE:
* Motorola 6809E microprocessor running at 2 MHz.
* 64K Dynamic Ram memory with hardware refresh.
* Integrated video, 80x24, 4K Video RAM (i.e. the video can
hold more than one screenful at a time). Mostly ANSI
compatible. Some bit-mapped graphics that I've never used.
Teco monitor. George Risk Industries 56-key ASCII keyboard.
* Western Digital 1791-based floppy disk controller, double
sided double density (approx. 320K bytes/disk). 2
half-height 5 1/4" drives (have extra full-height drives for
the asking, and even a 80-track 3 1/5" drive).
* 2 RS-232 serial ports (one on the processor board, one on the
video board). Some parallel port bits floating around
somewhere.
* EPROM programming socket (2516/2716/2532 only).
* Switching power supply with +5, +12 and -12 volts (you'd need
to supply your own +27 volts for the EPROM programmer).
* All schematics where available.
You get SOFTWARE:
* Motorola ASSIST09 monitor with built-in disassembler and disk
boot command.
* Technical System's Consultants (TSC) FLEX (tm) operating
system, including TSC Editor and macrocode assembler.
* TSC XBASIC interpreter.
* Stylograph Text Editor.
* Dynasoft Pascal interpreter.
* TSC Pascal compiler.
* Spell-Test by Dale Puckett.
* Kermit file transfer utility.
* Misc. games including Cribbage and David Malmberg's Castle
Adventure.
* Misc. FLEX utilities including MSDOS, a program to read and
write MS-DOS formatted diskettes.
* All source code where available.
A little HISTORY:
A company I worked for 10 years ago developed this system, and
this one of the original prototypes. It has many hardware and
software enhancements that were not available on the machines sold.
The company has since gone out of business.
I have used the system on and off for 10 years, including text
editing, file transfers, computation and general fooling around. I
bought an IBM AT clone this past winter because the 6809 system just
became too awkward to continue using.
What's it worth? I don't know, make me a reasonable offer. I'd
rather give it to someone than scrap it. I'll admit the system isn't
100% reliable or completely documented (the source code is pretty
good, though :-), but it does run (I copied a bunch of software to
MS-DOS disks just this morning). I can tell you about the quirks, but
I won't promise to fix them. Like Ellyn said on thirtysomething this
past week, "You have to get your hands dirty."
Please contact me via EMAIL and we can discuss it.
Jim Reisert
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"The opinions expressed here in no way represent the views of Digital
Equipment Corporation."
James J. Reisert Internet: reisert@tallis.enet.dec.com
Digital Equipment Corp. UUCP: ...decwrl!tallis.enet!reisert
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P.O. Box 1123
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