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Path: utzoo!linus!decvax!harpo!seismo!hao!hplabs!sri-unix!cbosgd!djb@Berkeley
From: djb@Berkeley@cbosgd.UUCP
Newsgroups: net.graphics
Subject: Re: Blit solution to windows
Message-ID: <4316@sri-arpa.UUCP>
Date: Wed, 17-Aug-83 11:19:28 EDT
Article-I.D.: sri-arpa.4316
Posted: Wed Aug 17 11:19:28 1983
Date-Received: Sun, 21-Aug-83 03:29:18 EDT
Lines: 21

From:  cbosgd!djb@Berkeley (David J. Bryant)

I don't know where Bob Warfield (warbob%rice.Rice@Rand-Relay) got his
information, but it is very, very wrong.  The blit (and when I say
blit I also mean the Teletype 5620) is not hardware limited in the number 
of windows that can be supported.  It does not, and never has used a 
separate RS232 line for each window.  The multiplexing is done over a 
single RS232 port by special programs that run in the terminal and the host.  
You can run as many windows as you want, and over a single terminal-host 
RS232 connection, although having way too many is not a good idea (you can 
exhaust the memory available for window management, but it takes lots of 
overlapped window area to do this).

Further, there most certainly is icon support.  You can design your own
icons as bitmaps, and manipulate them all over the screen.  Quite a lot
of the blit programs (cip, for example, and anything that uses the mouse)
make good use of icons for a wide variety of applications.  It's very easy
to do.

	David Bryant   Bell Labs   Columbus, OH   (614) 860-4516
	(cbosg!djb)