Unix and VM

From: Bill Pechter <pechter_at_monmouth.com>
Date: Sun Jan 24 20:06:19 1999

> >No it didn't. I'm fairly certain that VM didn't appear until V7 on pdp-11
> >or maybe later.
> IIRC, adding virtual memory support to UNIX was the project goal for the
> CSRG at Berkeley. That was what BSD Unix was all about, and it was why the
> kernel image was /vmunix vs. the /unix which was the prior kernel image name.
> --Chuck

Paged VM didn't appear until the 32bit Vax. (BSD had it... AT&T (USG) Unix
didn't until SVR2 on Vax and WECO 32 bit processors...
(There was PDP11 support through SysV...)

The PDP11's never got paging (in USG Unix) although overlays were used.


  Bill Gates is a Persian cat and a monocle away from being a 
  villain in a James Bond movie              -- Dennis Miller 
Received on Sun Jan 24 1999 - 20:06:19 GMT

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