6 May
1998
6 May
'98
5:50 p.m.
At 09:35 PM 06-05-98 -0500, Uncle Roger wrote:
At 02:12 PM 5/3/98 -0400, you wrote:
><To my knowledge no flavor of unix runs on anything less than a 32-bit
><processor. There's a unix-workalike for the C-64/128, but that's not
>
>Your knowledge is limited. Unix was started and lived for years on
>PDP-11s (a 16 bit machine) in the form of V5, V6, V7 and 2.9BSD and
>2.11BSD. I may add it was on other machines like the Interdatas.
To be strictly correct, the original version of Unix was written (in
assembler) for a Digital PDP-7 which was an 18bit computer. It was later
rewritten in B and then C which allowed a reasonably easy port to PDP-11s,
where it lived for a long while.
I thought someone had said that CP/M was based on Unix?
Or was that one
of the PDP opsys?
CP/M looks at the user level almost exactly as RT-11 does, so my guess is
that RT-11 was the inspiration for CP/M.
Huw Davies | e-mail: Huw.Davies(a)latrobe.edu.au
Information Technology Services | Phone: +61 3 9479 1550 Fax: +61 3 9479
1999
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