[TUHS] PC Unix

Warner Losh imp at bsdimp.com
Fri Apr 9 08:31:37 AEST 2021

On Wed, Apr 7, 2021 at 1:54 AM Paul Ruizendaal via TUHS <
tuhs at minnie.tuhs.org> wrote:

> It seems like Venix/86 came out in Spring 1983 and PC/IX in Spring 1984. I
> guess by then RAM had become cheap enough that running in 64KB of core was
> no longer a requirement and LSX and MX did not make sense anymore. Does
> that sound right?

Venix/86 2.0 (still 7th edition) requires 192k to run, at least on my
Rainbow, and get to login:.  128k and 64k simply are too small
configurations to run it. There's not a lot of 'fat' in the Venix kernel
and more-modern compilers only are able to make modest gains over the
primitive pcc used at the time. The raw kernel for pc/ix is a few k larger
than the venix kernel. So I'm guessing that's right.

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