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From: agn@unh.cs.cmu.edu (Andreas Nowatzyk)
Newsgroups: net.unix,net.unix-wizards
Subject: Re: Unix on top of/in parallel with other operating systems
Message-ID: <218@unh.cs.cmu.edu>
Date: Sat, 22-Feb-86 16:54:40 EST
Article-I.D.: unh.218
Posted: Sat Feb 22 16:54:40 1986
Date-Received: Wed, 26-Feb-86 04:44:52 EST
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Take a look at ELXSI systems. They run 3 operating systems in parallel:
BSD 4.2 Unix, SYS V Unix and Embos (their naitive OS, which is supposed
to become VMS-like). The machine itself is quite interesting: a 64 bit
ECL machine that supports multiple CPU's (up to 10, each said to be
5 times faster than a VAX780), multiple I/O channels and a large memory
(192 Mbyte, currently based on 64K chips). They claim that there is no
significant performance loss by running several OS's and that each has
about the same performance.

This info is based on a talk by an ELXSI person... It would be nice if
an ELXSI site on the Net could comment on these claims.

  -- Andreas             Arpa:   agn@vlsi.cs.cmu.edu
			 uucp:   ...!seismo!vlsi.cs.cmu.edu!agn