From: dmr@plan9.bell-labs.com (dmr@plan9.bell-labs.com)
Subject: [TUHS] re: ATT 3b2
Date: Mon, 20 Feb 2006 23:16:49 -0500 [thread overview]
Message-ID: <dc50b0abdcf6b048b5529f34287f8bf8@plan9.bell-labs.com> (raw)
> I'm interested in acquring an AT&T 3b2 computer. One of these systems
> used to run a famous public UNIX system "killer". They also run #5ess
> telephone switches, however the OS is different in that case
> (DMERT/UNIX-RTR instead of whatever the consumer-level 3b2 runs).
> If anyone has information on where to acquire these (I saw the recent
> discussion on 3b1s and I know they are more prolific than 3b2s-- infact
> a friend of mine used to have a UNIX PC which we set up a BBS on).
The 3B2 was not the same machine as the one in 5ESS, which
was/is the 3B20D, a fairly large duplexed machine (two processors
that mutually checked each other). The 3B2 was a desktop.
The 3B20D wasn't sold commercially, as far as I know. There
was a 3B20S (multi-cabinet) that at least nominally
was commercially available.
Their ISAs were not quite the same, but some assembler language
tricks made the assembler-level languages look quite similar.
Dennis
next reply other threads:[~2006-02-21 4:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-21 4:16 dmr [this message]
2006-02-21 5:05 ` [TUHS] " Corey Lindsly
2006-02-21 6:28 ` Carl Lowenstein
2006-02-21 6:58 ` Michael Davidson
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=dc50b0abdcf6b048b5529f34287f8bf8@plan9.bell-labs.com \
--to=dmr@plan9.bell-labs.com \
/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).