The 286 had segmentation. You don't need paging to implement VM. And you
don't need paging to call it Unix (or Xenix or whatever). In fact, UCB broke
the Unix tradition by combining Unix with paging. (System V stuck with
swapping for quite a while longer.)
> But I remember that Xenix ran on 286. And just yesterday I was listening
> SCO presentation, and the presenter mentioned that as well. He also said
> there was a Xenix implementation that ran on 8086!
Yes, there was.
> MS should be happy about that, they still get $15 on every copy of
> Unix on x86 (except from Sun and SGI).
No longer, according to SCO:
MICROSOFT RELEASES SCO FROM OBLIGATION TO INCLUDE, AND PAY ROYALTIES ON,
OUTDATED UNIX CODE
Joseph S. Barrera III <email@example.com>
Phone, Office: (415) 778-8227; Cellular: (415) 601-3719; Home: (650)
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