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Article #3179

Re: Prisma is gone

#3179
From: Nick Michell
Date: Tue, 28 Nov 1989 17:41
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I'm interested in GaAs, although I don't much about Prisma.
If the failure was technology related, was that due to the use
of parts from Gigabit - high speed, but also high power and only
MSI density (not to mention the fact the Gigabit is in financial
trouble)?  The leading start-up in GaAs seems to be Vitesse, which
trades off some speed for lower power and higher density (currently,
around 15,000 gates).

On a related subject, DARPA has funded a number of GaAs RISC chips,
which have been reported in various conferences and acedemic publications.
This research has, at least so far, resulted in no commercial spin-offs.

Is GaAs just not up to it?  Is the technology too immature still?
It certainly appears to me that the current Vitesse technology would
do fine for a Risc chip set.  It appears from recent EE times articles
that at least Convex and Solbourne think select use of GaAs is worthwhile.
Any comments, netland?

/Nick Michell
 michell@cs.utah.edu
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Message-ID: <1989Nov28.104128.8045@hellgate.utah.edu>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!hellgate.utah.edu!cs.utah.edu!michell
References: <24317@cup.portal.com> <480@dmk3b1.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!hellgate.utah.edu!cs.utah.edu!michell
From: michell@cs.utah.edu (Nick Michell)
Newsgroups: comp.arch
Subject: Re: Prisma is gone
Message-ID: <1989Nov28.104128.8045@hellgate.utah.edu>
Date: 28 Nov 89 17:41:27 GMT
References: <24317@cup.portal.com> <480@dmk3b1.UUCP>
Organization: University of Utah CS Dept
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