Why ^U?

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2 total messages Started by bzs@world.std.co Thu, 25 Feb 1999 00:00

#3338

Author: bzs@world.std.co
Date: Thu, 25 Feb 1999 00:00

9 lines
258 bytes

Why is ^U the primordial DEC line-kill keystroke, and where did it
first appear?


--
        -Barry Shein

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Re: Why ^U?

#3339

Author: eric@fudge.uchic
Date: Thu, 25 Feb 1999 00:00

14 lines
514 bytes

Barry Shein <bzs@world.std.com> wrote:

> Why is ^U the primordial DEC line-kill keystroke, and where did it
> first appear?

I don't know when it first appeared, but it was in use on the PDP-6
by 1966, according to a table in the Proceedings of the Australian
Computer Conference (p. 251) from that year.  Wasn't the PDP-5 the
first DEC computer to use ASCII?

The original (pre-lowercase) ASCII standard defines ^U as "error,"
which makes more sense than the "NAK" that replaced it in the revised
standard.

eric

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