Path: utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!hplabs!pyramid!moliver From: moliver@shadow (Mike Oliver) Newsgroups: comp.arch Subject: Re: Crashing machines with and without microstore, and the IBM AS-400 Message-ID: <140400@pyramid.pyramid.com> Date: 8 Jan 91 23:21:38 GMT Sender: daemon@pyramid.pyramid.com Reply-To: moliver@shadow.pyramid.com (Mike Oliver) Organization: Pyramid Technology Corp., Mountain View, CA Lines: 35 In article esmith@goofy.apple.com (Eric Smith) writes: >In article <71756@bu.edu.bu.edu> gjc@buitc.bu.edu (George J. Carrette) writes: >> >> Q: How do we date the AS-400 from IBM? It is a tagged architecture >> with a PAGEABLE MICROSTORE! It was introduced around 1985 anyway. > >Actually, the first AS-400 machines are more recent than that. I think >they were introduced in '88 or '89. Anyone know for sure? "The Application System/400 [tm] (AS/400 [tm]) was announced in June 1988 and was the product of a development effort centered in the IBM Rochester, Minnesota, Development Laboratory". >Does the AS-400 have any neat architectural innovations other than those >needed to merge the System 36 and 38? What's the difference between "neat" and "off the wall" ? :) > Are there any good papers on the >AS-400? The above quote concerning the announcement date is excerpted from the "IBM Systems Journal Vol 26 No 3, 1989", an issue of the SJ dedicated to the AS/400. It doesn't go into enormous detail on the machine architecture, but it does give a decent overview of the system composition and the rationale behind it. If you want to get hold of a copy (cost is $6 for a single issue), ask your local IBM office. The order number for this particular issue is G321-0095-00. Cheers, Mike. moliver@pyramid.com {allegra,decwrl,hplabs,munnari,sun,utai,uunet}!pyramid!moliver