From: wkt@tuhs.org (Warren Toomey)
Subject: [TUHS] PDP-11 questions
Date: Wed, 27 Jan 2016 05:59:12 +1000 [thread overview]
Message-ID: <20160126195912.GA14958@minnie.tuhs.org> (raw)
In-Reply-To: <201601261936.u0QJaStV027123@coolidge.cs.Dartmouth.EDU>
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On Tue, Jan 26, 2016 at 02:36:28PM -0500, Doug McIlroy wrote:
> That is exactly right. Unix was up and running as a time-sharing
> system with remote access before a primitive DOS emerged from DEC.
> The chess problem was enumeration of closed knight tours.
"The processor arrived at the end of the summer [1970], but the PDP-11
was so new a product that no disk was available until December. In the
meantime, a rudimentary, core-only version of Unix was written using
a cross-assembler on the PDP-7. Most of the time, the machine sat in
a corner, enumerating all the closed Knight's tours on a 6×8 chess
board—a three-month job."
-- https://www.bell-labs.com/usr/dmr/www/hist.html
Cheers, Warren
next prev parent reply other threads:[~2016-01-26 19:59 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 19:36 Doug McIlroy
2016-01-26 19:59 ` Warren Toomey [this message]
-- strict thread matches above, loose matches on Subject: below --
2016-01-26 20:07 Doug McIlroy
2016-01-26 20:44 ` Clem Cole
[not found] <mailman.29.1453684304.15972.tuhs@minnie.tuhs.org>
2016-01-25 3:07 ` Johnny Billquist
2016-01-25 3:09 ` Johnny Billquist
2016-01-25 12:54 ` John Cowan
2016-01-25 13:09 ` Johnny Billquist
2016-01-25 13:49 ` Johnny Billquist
2016-01-25 16:00 ` John Cowan
2016-01-25 16:17 ` Johnny Billquist
2016-01-25 16:43 ` John Cowan
2016-01-25 1:11 Noel Chiappa
2016-01-25 1:30 ` Clem cole
2016-01-24 22:40 Norman Wilson
2016-01-25 1:55 ` David Ritchie
2016-01-25 1:59 ` Ronald Natalie
2016-01-25 2:14 ` Clem cole
2016-01-25 11:29 ` Tony Finch
2016-01-25 13:25 ` Ronald Natalie
2016-01-25 16:18 ` Pete Turnbull
2016-01-25 19:37 ` Clem Cole
2016-01-24 22:40 Norman Wilson
2016-01-25 0:23 ` Ronald Natalie
2016-01-24 18:56 Noel Chiappa
[not found] <mailman.25.1453658502.15972.tuhs@minnie.tuhs.org>
2016-01-24 18:34 ` Johnny Billquist
2016-01-24 18:30 Noel Chiappa
2016-01-24 18:36 ` Ronald Natalie
2016-01-24 21:10 ` John Cowan
2016-01-25 0:11 ` scj
2016-01-25 0:36 ` Clem cole
2016-01-24 18:01 Noel Chiappa
2016-01-24 17:37 Mark Longridge
2016-01-24 18:49 ` Clem Cole
2016-01-25 3:16 ` Dave Horsfall
2016-01-25 5:32 ` Warren Toomey
2016-01-25 12:27 ` Clem cole
2016-01-25 13:38 ` Lawrence Stewart
2016-01-25 14:15 ` Clem Cole
2016-01-26 19:52 ` Dave Horsfall
2016-01-26 20:41 ` Clem Cole
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