Cromemco S-100 Bus computer

I once designed a computer monitoring product in the closet of my bedroom. 4-bits, 8-bits, and a dollar!

I just skimmed the Wikipedia entry for the Cromemco [a]. Apparently, the Cromemco computer was known for its reliability. That was not my personal experience. However, I was wrong about the bus voltages. The S-100 bus [b] had bulk unregulated +8 Volt DC and ±16 Volt DC. It was an oven mounted with floppy drives! [a] Cromemco – Wikipedia [b] S-100 bus – Wikipedia

[a] Cromemco – Wikipedia
[b] S-100 bus – Wikipedia

Photo: Cromemco, CC BY-SA 3.0, via Wikimedia Commons


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