Subject: Re: NetBSD/pdp10 ?
To: Jonathan Stone <jonathan@DSG.Stanford.EDU>
From: Perry E. Metzger <perry@wasabisystems.com>
List: tech-kern
Date: 03/06/2002 17:23:24
Jonathan Stone <jonathan@DSG.Stanford.EDU> writes:
> In message <87pu2hqv3r.fsf@snark.piermont.com>"Perry E. Metzger" writes
> >Er, Eduardo, the machines in question invented the modern MMU. They
> >were the first architecture to have demand paged virtual memory.
> 
> Nope, the first demand-paged virtual memory was at Manchester, with
> CRT memory.  See the the paper on two-level store by Kilburn &c,
> collected in Bell, Siewiorek and Newman's "Computer Architecture".

Yah, and multics had it too. I got it wrong. However, it did have
demand paging in the later models.

.pm
--
Perry E. Metzger		perry@wasabisystems.com
--
NetBSD: The right OS for your embedded design. http://www.wasabisystems.com/