Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!samsung!zaphod.mps.ohio-state.edu!lavaca.uh.edu!menudo.uh.edu!sugar!ficc!peter From: peter@ficc.ferranti.com (Peter da Silva) Newsgroups: comp.arch Subject: Re: Historical architectural advances?? Message-ID: Date: 11 Nov 90 14:43:24 GMT References: <8185@scolex.sco.COM> <1868@m1.cs.man.ac.uk> <8553@scolex.sco.COM> <1888@m1.cs.man.ac.uk> <1990Nov7.155719.24413@dg-rtp.dg.com> Reply-To: peter@ficc.ferranti.com (Peter da Silva) Organization: Xenix Support, FICC Lines: 14 In article <1990Nov7.155719.24413@dg-rtp.dg.com> hamilton@dg-rtp.dg.com (Eric Hamilton) writes: > I would like to see the term "tightly coupled" reserved for > systems in which memory is shared and coherent for all > processors and all the processors occupy the same physical > address space. Fair enough. > The distinguishing characteristic of these > machines is that the C construct *p=... can be used to > change shared data. This means that any group of systems on an Ethernet suddenly become tightly coupled as soon as you boot up Andy Tannenbaum's Amoeba on them, no? -- Peter da Silva. `-_-' +1 713 274 5180. 'U` peter@ferranti.com