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S-100 RAM Cards

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  S-100 RAM Cards by Bill Degnan - 01/01/2008 11:02
I have gotten more confident with my ability to
conclusively test various s-100 RAM cards, allocate programs to specific
locations, change memory values, etc using my IMSAI. I can also assign the
memory pages (0000-1000, 1000-2000, etc.) so that there can be more than
one RAM card installed without conflict. I have installed 32K into the
IMSAI. As I identify good RAM cards, I can put some into the SOL-20 I
also have on the table. I have a small pile or RAM cards that I have
accumulated from various places. I also soldered up a cassette cable for
the IMSAI. I broke down and bought a new Radio Shack tape recorder so that
I can count on a reliable drive when testing cassettes on an S-100
system. I have some Altair BASIC tapes that I want to load. After that I
plan to attempt a Micropolis controller card and 2 or 3 compatible disk
drive. The Micropolis cards had their own monitor I believe. Overall, I
am working at being a competent S-100 programmer, and hardware support
person (but not hardware developer)


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  32K Continuous RAM by Bill Degnan - 01/25/2008 22:45
Picture of the IMSAI with 32K continuous RAM (Goldbout 16K, Proc Tech 16K), Cutter, VDM-1, CUTS.

Clean front panel.

PIC

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