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Article #210943Re: IBM 9020 FAA/ATC Systems from 1960's
From: CBFalconer
Date: Thu, 16 Aug 2001 20:33
Date: Thu, 16 Aug 2001 20:33
22 lines
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2652 bytes
"Richard C. Steiner" wrote: > > In article <6aie7.52269$e%3.8...@news2-win.server.ntlworld.com>, > Chris Bigos wrote: > > >I wouldn't be surprised if the RPSB instruction (Repack Symbols) takes the > >prize for the most complex instruction ever implemented in the history of > >mainframe computing - certainly of the era. Any comments? (I guess this > >should be a new thread - if there isn't one on this topic already.) > > I'm still curious how it compares to the Sperry UNIVAC 1100/80's "EDIT" > instruction (which I mentioned last time the topic of complex mainframe > instructions were talked about here). That one was ugly. ;-) I believe the HP3000 circa 1980 had a 'schedule' instruction micro-programmed. This could be used to voluntarily relinquish the CPU, or by the op-sys on the appropriate timer interrupt. -- Chuck F (cbfal...@yahoo.com) (cbfal...@XXXXworldnet.att.net) (Remove "XXXX" from reply address. yahoo works unmodified) mailto:u...@ftc.gov (for spambots to harvest)
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<7HU77.9333$TM5.980906@typhoon.southeast.rr.com> <memo.20010727094436.36989A@mikekingston.compulink.co.uk> <vd2NzVOTNb7v-pn2-vdi55dTSr5Cy@dialup-63.208.164.65.Dial1.Washington2.Level3.net> <jwU87.26231$J37.6143999@typhoon.southeast.rr.com> <vd2NzVOTNb7v-pn2-S9FIPi2udxUW@dialup-63.208.164.94.Dial1.Washington2.Level3.net> <9k3oan$t35$1@top.mitre.org> <vd2NzVOTNb7v-pn2-kRuq3Z30rY3O@dialup-209.244.87.87.Dial1.Washington2.Level3.net> <vd2NzVOTNb7v-pn2-PBomleKh1jJS@dialup-209.244.224.188.Dial1.Washin <9l0m6j$la3$1@top.mitre.org> <K2Tc7.108947$TM5.16755795@typhoon.southeast.rr.com> <6aie7.52269$e%3.8225465@news2-win.server.ntlworld.com> <slrn9no27d.psh.rsteiner@isis.visi.com>Show Full Headers
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Path: mbox-mo1.pugleaf.net!archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!bloom-beacon.mit.edu!howland.erols.net!news-out.worldnet.att.net.MISMATCH!wn3feed!worldnet.att.net!135.173.83.71!wnfilter1!worldnet-localpost!bgtnsc05-news.ops.worldnet.att.net.POSTED!not-for-mail Message-ID: <3B7C2B74.3E3D9FA4@yahoo.com> From: CBFalconer <cbfal...@yahoo.com> Reply-To: cbfal...@worldnet.att.net Organization: Ched Research X-Mailer: Mozilla 4.75 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: alt.folklore.computers Subject: Re: IBM 9020 FAA/ATC Systems from 1960's References: <7HU77.9333$TM5.980906@typhoon.southeast.rr.com> <memo.20010727094436.36989A@mikekingston.compulink.co.uk> <vd2NzVOTNb7v-pn2-vdi55dTSr5Cy@dialup-63.208.164.65.Dial1.Washington2.Level3.net> <jwU87.26231$J37.6143999@typhoon.southeast.rr.com> <vd2NzVOTNb7v-pn2-S9FIPi2udxUW@dialup-63.208.164.94.Dial1.Washington2.Level3.net> <9k3oan$t35$1@top.mitre.org> <vd2NzVOTNb7v-pn2-kRuq3Z30rY3O@dialup-209.244.87.87.Dial1.Washington2.Level3.net> <vd2NzVOTNb7v-pn2-PBomleKh1jJS@dialup-209.244.224.188.Dial1.Washin <9l0m6j$la3$1@top.mitre.org> <K2Tc7.108947$TM5.16755795@typhoon.southeast.rr.com> <6aie7.52269$e%3.8225465@news2-win.server.ntlworld.com> <slrn9no27d.psh.rsteiner@isis.visi.com> Lines: 23 Date: Thu, 16 Aug 2001 20:33:48 GMT NNTP-Posting-Host: 12.90.172.173 X-Complaints-To: ab...@worldnet.att.net X-Trace: bgtnsc05-news.ops.worldnet.att.net 997994028 12.90.172.173 (Thu, 16 Aug 2001 20:33:48 GMT) NNTP-Posting-Date: Thu, 16 Aug 2001 20:33:48 GMT Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit