6 Apr
2004
6 Apr
'04
11:17 p.m.
Subject: RE: [TUHS] Booting v6
Date: Tue, 6 Apr 2004 16:04:10 -0700
Thread-Topic: [TUHS] Booting v6
thread-index: AcQcKECoV1Z8goZHTHydv0dtlVPxNwAANuHA
From: "Ian King" <iking(a)windows.microsoft.com>
To: "Carl Lowenstein" <cdl(a)mpl.ucsd.edu>du>, <billc_2(a)charter.net>et>,
<tuhs(a)minnie.tuhs.org>
BTW, the Lions book - which documents 6th Ed. very comprehensively - is
available for legal purchase. I have both the published version and
(from a set of docs I bought on eBay) an old 'bootleg' photocopy.
Me too, as they say. I did the bootleg photocopying myself.
There was at least one card that would drive a vector
display, like the
old Tektronix storage tube devices, but most I/O was terminal based. I
have some old ADM3a terminals that folks often mistake for early iMacs -
they ask me which processor they use. :-)
The first 11/20 I used had a Tektronix 4002 Graphics terminal
with it. This was a storage tube, vector addressable. But it also
had a complete ASCII terminal emulator built in, with diode matrix
character generator ROMs. Also the best keyboard I ever used,
with magnetically-operated reed switches. The Tek terminal used
a specially modified KL11 terminal interface, which did serial
communication to the CPU at something like 100k characters/sec.
This made the hard-copy TTY-based editor really easy to use, because
it could repaint the whole screen in a fraction of a second.
carl
--
carl lowenstein marine physical lab u.c. san diego
clowenst(a)ucsd.edu