^X (was: an odd question

From: ajp166 <ajp166_at_bellatlantic.net>
Date: Thu Aug 9 20:05:37 2001

From: joe <rigdonj_at_intellistar.net>
To: classiccmp_at_classiccmp.org <classiccmp_at_classiccmp.org>


>I may be wrong but didn't the use of Control and a key begin with
teletypes
>and long before the arrival of computers? I know the control something
was

>used to ring the bell on the recieving system. Control something else


Ding ding ding, you win. ^G rings the bell. However the original
question
was the notion of "Control and G" keys contracted to CTRL-G (tty
nomenclature)
to ^G.

>generated the DC 1 and DC 2 codes that could be used to switch off and
on
>special devices on the recieving system.


That too. Actually there were some 32 possible control codes, many were
used.

FYI that PDP-8 was an i version and the console was a tty!

Allison
Received on Thu Aug 09 2001 - 20:05:37 BST