Xenix 286?

[Chuck Guzis]

On 2/21/2006 at 7:35 PM vrs wrote:

>I am certain that Xenix/286 doesn't page.  It does swap, much like early 
>PDP-11 Unix kernels.  But you will need enough RAM to load the kernel plus

>your largest process.

Certainly not page--there's no native paging facility in the 286.  That
came with the 386.  However, the 286 can run segmented code and swap
segments in and out of memory.    One could, I suppose, define a 64K page
size and fill the descriptor table with entries and so, in theory, have a
virtual memory size of half a gig.  But you'd have to tread selector
arithmetic something awful.

AFAIK, no OS ever did this on the 286.

Cheers,
Chuck