Quite right, the gaps do not matter. The Omnibus is more of a typical
computer bus than the Unibus which is more of an i/o bus.
Kevin
-----Original Message-----
From: owner-classiccmp_at_classiccmp.org
[mailto:owner-classiccmp_at_classiccmp.org]On Behalf Of Pete Turnbull
Sent: 20 November 2001 08:31
To: classiccmp_at_classiccmp.org
Subject: PDP-8 backplane -- was Re: PDP-8 case
On Nov 20, 0:53, Tony Duell wrote:
> Since you can put options with top connectors anywhere in the backplane,
> there would seem to be little point in having special foam over the front
> slots only.
That reminds me... supplementary question: The machine had gaps between
some of the cards. It's over 20 years since I used a PDP-8 for real, and
in those days I wasn't usually allowed at the innards. The gaps don't
matter, do they? There's no grant chain like in a Unibus, AFAIR. The
-8/E is an Omnibus machine, of course.
--
Pete Peter Turnbull
Network Manager
University of York
Received on Tue Nov 20 2001 - 03:25:16 GMT