9 Aug
2001
9 Aug
'01
8:05 p.m.
From: joe <rigdonj(a)intellistar.net>
To: classiccmp(a)classiccmp.org <classiccmp(a)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