What is the KH11-A? (was Re: Differences between the PDP-11/15 and PDP-11/20)
Ethan Dicks
ethan.dicks at gmail.com
Mon Aug 22 08:47:14 CDT 2016
On Mon, Aug 22, 2016 at 8:49 AM, Noel Chiappa <jnc at mercury.lcs.mit.edu> wrote:
> > I recall reading _somewhere_ about some early PDP-11 memory management
> > thing used on early PDP-11 Unix that supported the KE11 ... by having a
> > small window that allowed user code access to the KE11. ...
> > Does this ring any bells for anyone?
>
> Never mind - found it, it was in "Odd Comments and Strange Doings in Unix":
>
> https://www.bell-labs.com/usr/dmr/www/odd.html
Ah... I have read that before, but I glossed over the anectode about
the KE11 and KS11. All makes sense now.
> The memory management thing in question was the KS11; I looked, but could not
> find anything about it. Does anyone know of anything?
Nope. But I'm intrigued now.
-ethan
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