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> Then, as a young engineer, I worked in a large mainframe computer system based on Z80. This sentence threw me a little bit. Which mainframes were based on t
by Lio 2mo ago
> Then, as a young engineer, I worked in a large mainframe computer system based on Z80.
This sentence threw me a little bit. Which mainframes were based on the Z80? I'd love to know more about that.
- helf 2mo agoIf it wasnt some mostly custom system it was probably an HP 64000 Logic Development System. Which used Z80s to run user facing software and control the actual mainframe. I doubt it was a pure Z80 "mainframe". Loved to be proved wrong though!
- buescher 2mo agoS100 systems were sometimes called mainframes after their card cage construction: usually with the qualifier “s-100 mainframe” for the system or the enclosure and backplane.
- JPLeRouzic 2mo agoMorrow systems ran on a Unix flavor, could address 16MB all on Z80, had memory protection and could have up to 6 simultaneous users. Micronix was the only Unix-like multiuser system ever to run on an 8 bit processor. https://ia902902.us.archive.org/20/items/mame0.211manualsfullset/mpz80.pdf https://ia902902.us.archive.org/20/items/mame0.211manualsful...
- nineteen999 2mo agoUntil Fuzix of course.