Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!maverick.ksu.ksu.edu!ux1.cso.uiuc.edu!ux1.cso.uiuc.edu!m.cs.uiuc.edu!gillies From: gillies@m.cs.uiuc.edu Newsgroups: comp.arch Subject: Re: Plessy 250 Message-ID: <3300217@m.cs.uiuc.edu> Date: 16 Nov 90 15:37:00 GMT References: <183201@<1990Nov15> Lines: 9 Nf-ID: #R:<1990Nov15:183201:m.cs.uiuc.edu:3300217:000:377 Nf-From: m.cs.uiuc.edu!gillies Nov 16 09:37:00 1990 "Capability-Based Computer Systems", by Henry Levy, Digital Press, 1984. This book has a chapter on the protection scheme in Plessy/250. This is a very good book if you're interested in capabilities -- it is the only source I've seen that fully explains the implementation of several capability-based systems (most conference papers have holes and gaps in the explanations).