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From: guy%gorodish@Sun.COM (Guy Harris)
Newsgroups: comp.bugs.4bsd
Subject: Re: TANDEM mode bugs in 4.3bsd
Message-ID: <11323@sun.uucp>
Date: Tue, 13-Jan-87 04:39:27 EST
Article-I.D.: sun.11323
Posted: Tue Jan 13 04:39:27 1987
Date-Received: Tue, 13-Jan-87 19:18:03 EST
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Summary: V6 didn't support XOFF, XON, or anything like it.

> 	A historical interest note: on vanilla v6 UNIX, XOFF was a toggle;
> send one XOFF to stop output, another to restart it.  Given that v6 didn't
> come with a pager program, the small amount of time saved by not moving
> your fingers on the keyboard was important at 9600 baud.

Vanilla V6 didn't have *any* support of XOFF, whether with XON or not.  Then
again, I don't think many people ran truly vanilla V6 (as in "read it in off
the tape and don't go near the source").