Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!dcl-cs!aber-cs!athene!pcg From: pcg@cs.aber.ac.uk (Piercarlo Grandi) Newsgroups: comp.arch Subject: Re: Plessy 250 Message-ID: Date: 16 Nov 90 14:25:22 GMT References: <1990Nov15.183201.23217@bellcore.bellcore.com> <3224@ns-mx.uiowa.edu> Sender: aro@aber-cs.UUCP Organization: Coleg Prifysgol Cymru Lines: 27 Nntp-Posting-Host: odin In-reply-to: jones@pyrite.cs.uiowa.edu's message of 15 Nov 90 23:36:43 GMT Posting-Front-End: GNU Emacs 18.55.4 of Thu Nov 23 1989 on athene (berkeley-unix) On 15 Nov 90 23:36:43 GMT, jones@pyrite.cs.uiowa.edu (Douglas W. Jones) said: jones> From article <1990Nov15.183201.23217@bellcore.bellcore.com>, jones> by mo@messy.bellcore.com (Michael O'Dell): mo> I've seen this machine referenced many times, but I've never seen mo> a description of the machine and its operating system. Is there such mo> a description available?? jones> [ ... some references to rare conference proceedings ... ] I think that the best introduction is the book by Levvy, published by Digital Press, on capability systems. It is facinating reading, even for those that (like me...) are already familiar with the subject. It is (almost) all condensed there, and fairly well. This book is the most obvious illustration that computer/OS architecture is going in circles since the late sixities, and the only novelties are slightly different approaches, as technological tradeoffs shift, to the same ideas (OK, ok, this is a gross generalization, but it is fairly credible, isn't it? :->). -- Piercarlo Grandi | ARPA: pcg%uk.ac.aber.cs@nsfnet-relay.ac.uk Dept of CS, UCW Aberystwyth | UUCP: ...!mcsun!ukc!aber-cs!pcg Penglais, Aberystwyth SY23 3BZ, UK | INET: pcg@cs.aber.ac.uk