[TUHS] Zilog Z80 Unix

Rik Schneider unix at deranged.schneider.org
Thu Apr 20 14:32:16 AEST 2017

Cromix was the name of Cromenco's Unix Like OS.


On Wed, Apr 19, 2017 at 8:09 PM, Bakul Shah <bakul at bitblocks.com> wrote:
> On Wed, 19 Apr 2017 18:42:42 PDT "Erik E. Fair" <fair-tuhs at netbsd.org> wrote:
>> I have a memory of having seen a Zilog Z-80 (not Z8002 like the Onyx) based =
>> Unix, possibly v6, at a vendor show or conference - perhaps the West Coast =
>> Computer Faire (WCCF) in the late 1970s or early 1980s.
>> I recall asking the people in the booth how they managed without an MMU, and
>> don't recall their answer. I do remember thinking that since Unix had "grown
>> up" with MMUs to stomp on obvious pointer mistakes, the software ought to be
>> relatively well-behaved ... you know: not trying to play "core war" with =
>> itself?
>> I searched the TUHS archives cursorily with Google to see if this has been
>> previously mentioned, but pretty much all Z80 CPU references have for its use
>> in "smart" I/O devices back in the day.
>> Does anyone else remember this Z80 Unix and who did it? Or maybe that it was
>> a clone of some kind ... ?
>>       looking for a little history,
>>       Erik Fair
> You may be thinking of Cromemco.

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