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From: rws@EXPO.LCS.MIT.EDU (Bob Scheifler)
Newsgroups: comp.windows.x
Subject: Re: X's history?
Message-ID: <9009081310.AA08818@expo.lcs.mit.edu>
Date: 8 Sep 90 13:10:54 GMT
References: <142054@sun.Eng.Sun.COM>
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
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    Actually, it was called "the V system" (not system V :-) and their
    corresponding distributed windowing system was called Y.

Interesting.  I'm not familiar with Y.  I *am* familiar with VGTS
(Virtual Graphics Terminal System), done by Lantz and Nowicki, which
is what I would have said was the distributed windowing system for V.
VGTS came before W; the VGTS papers I know about are dated 1984.
When did Y exist?