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From: mark@markshome.UUCP
Newsgroups: comp.dcom.lans
Subject: Re: talk problems between SUN and uVAX - (nf)
Message-ID: <5105@mimsy.UUCP>
Date: Sun, 18-Jan-87 15:27:48 EST
Article-I.D.: mimsy.5105
Posted: Sun Jan 18 15:27:48 1987
Date-Received: Mon, 19-Jan-87 06:02:03 EST
References: <16784@ucbvax.BERKELEY.EDU> <300@boulder.UUCP> <2555@phri.UUCP> <2908@osu-eddie.UUCP>
Sender: news@mimsy.UUCP
Reply-To: mark@markshome.UUCP (mark weiser)
Organization: U of Maryland, Dept. of Computer Science, College Pk., Md. 20742
Lines: 26

In article <2908@osu-eddie.UUCP> paul@osu-eddie.UUCP (Paul Placeway) writes:
>Under Tops-20, there is even a better way.  When you talk with someone,
>everything that is sent to your terminal (including the input echo) is also
>sent to everyone else who is in on the conversation.  You just make a 
>connection, and do stuff, and then break the connection when your done.
>It makes demonstrating commands very easy.

Although not predating anything, the Maryland window system 'swsh'
shell has a cloned-window feature done by Steve Miller. Anyone else on
the network can get a clone of any of your windows, and then any input
or output to that window happens to all its clones.  Clones can be
nested to any depth (the 'swsh' can run in itself, so it really is
possible to run a swsh inside a swsh window, etc. with clones around
here and there).  Because the window system is responsible for virtual
emulation of a vt100'sh type display in each window, screen-oriented
programs (such as vi or emacs or rogue) can be shared over the network
regardless of the terminal-types of any user. (I imagine this is not true for
Tops-20 talk.)  For security, you are notified via a popup if
someone wanted to clone one of your windows, and you could refuse the clone.

We don't use swsh any more since we all got suns, but it was nice
while it lasted.
-mark
Spoken: Mark Weiser 	ARPA:	mark@maryland	Phone: +1-301-454-7817
CSNet:	mark@umcp-cs 	UUCP:	{seismo,allegra}!umcp-cs!mark
USPS: Computer Science Dept., University of Maryland, College Park, MD 20742