The Unix Heritage Society mailing list
 help / color / mirror / Atom feed
From: johnh@psych.usyd.edu.au (John Holden)
Subject: [pups]  Re: A project--buiilding a device to plug into a PDP-11's bus
Date: Thu, 13 Nov 2003 12:30:34 +1100 (EST)	[thread overview]
Message-ID: <200311130130.hAD1UYVZ015853@psychwarp.psych.usyd.edu.au> (raw)


Gregg C Levine wrote :-

> I also recall that the processor in question at one point in its
> lifespan, actually used the AM2901 family of bit-slice processors.

DEC didn't use 2901's in central processors, but the FPU's for 11/34 and
11/44 used 16 of them to make the 64 bit data path for the FPU. They were
also used in some peripherals like the KMC-11.

A lot of OEM's (like Emulex) used them in disk/tape/terminal controllers.


             reply	other threads:[~2003-11-13  1:30 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-11-13  1:30 John Holden [this message]
2003-11-13  1:48 ` Gregg C Levine
2003-11-13  8:51 ` Jochen Kunz
2003-11-13 16:17   ` David Evans
2003-11-13  3:42 Carl Lowenstein

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200311130130.hAD1UYVZ015853@psychwarp.psych.usyd.edu.au \
    --to=johnh@psych.usyd.edu.au \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).