I was hoping someone wlse would know, but I'll do my best.
In my travels, I picked up a dozen or so Seattle
Computer CPU modules,
model 220A. Basically, it is a circuit board about 1.5" x 3" with an
8088, SN74LS04, SN74LS30, and a SN74LS273 chip on it. It has an 8 pin
header on the component side of the board, and the 40 pins of the 8088
socket extend about .5" below the board. Does anyone here have any idea
what this is??? I have had them for several years and have yet to find
out where they were used. Thanks.
This info was obtained second hand from a guy I bought a bunch of
SCP stuff from. Apparently a one-time friend of his work for them.
Thus - this could be wrong. SCP made at least six models of computer
the first being Z80 machines which ran CP/M, the next few being 8086
based which ran CPM-86 or SCP-DOS (which I'm pretty sure is MS-DOS
1.0 or the immediate prdecessor purchased by MS). The last were 8088
PC-clone type machines. We're concerned with the 8086 machines which
apparently were equipped to take a coprocessor so as to run both
CP/M-86 and SCP-DOS/MS-DOS simultaneously. I missed buying such a
machine by 15 minutes :(. At any rate - I'm guessing you have a
bunch of 8088 co-processors for these machines. The one I missed
was called a Gazelle-I so they might be for that machine.
Too bad I missed the machine - but I did pick up everything else the
guy had. Came down to a stack of Shugart 8" drives, some CompuPro
S-100 boards and a whole bunch of SCP disks. Now that I've brought
it up - SCP-DOS 1.0 = MS-DOS 1.0? I'm pretty sure it is because
another disk I've got is labelled the same but says SCP/MS-DOS v1.25.
Bill
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Bill Whitson - Classic Computers ListOp
bill(a)booster.u.washinton.edu or bcw(a)u.washington.edu
http://weber.u.washington.edu/~bcw