Re:
One is a rom from a pretty old mini or mainframe,
which is badged
Digital Systems
Digital Scientific Corporation, which was in the outskirts of San Diego.
The ROM board looks like one in the Digital Scientific Meta-IV
computer ... I remember applying ROM patches by peeling off
small squares and sticking on new ones, circa 1971.
The Meta-IV was allegedly an IBM 1130 clone. I say "allegedly",
because, as I understand it, it had an extra instruction or two that
technically made it an IBM 1800 clone ... but that was hearsay.
I used the Meta-IV, with the 1130 OS and 1130 APL and FORTRAN
for several years at the University of California, San Diego.
(IIRC, it was on the fifth floor of building 2A)
On it, using FORTRAN, I wrote a SpaceWar (based on the description
in the Analog science fiction magazine article circa 1969/1970).
Another student added explosion sounds (yeah, so what?!) by talking
to a Wavetek function generator sitting on top of the computer.
I used an Evans & Sutherland display device for the display, and
the 16 toggle switches for input.
I wouldn't mind getting a ROM board like that someday :)
Stan Sieler
sieler at
allegro.com
--
Stan Sieler
sieler at
allegro.com
www.allegro.com/sieler/wanted/index.html