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Article #1719Re: What is a Mainframe?
From: Mark Crispin
Date: Tue, 01 Aug 1989 19:51
Date: Tue, 01 Aug 1989 19:51
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In article <3469@csd4.milw.wisc.edu> jgd@csd4.milw.wisc.edu writes: >And then compare these to the IBM 7090/7094 -- 36 bit words, one's complement, >, load/store instruction set, etc. etc. (Was the Dec-20 one's complement?) The PDP-10 (the DEC-20 was a PDP-10 running the TOPS-20 operating system) was a two's complement machine. The influence of the 7090 was mostly in the word size and in having efficient instructions to manipulate halfwords for Lisp. Mark Crispin / 6158 Lariat Loop NE / Bainbridge Island, WA 98110-2020 mrc@CAC.Washington.EDU / MRC@WSMR-SIMTEL20.Army.Mil / (206) 842-2385 Atheist & Proud / 450cc Rebel pilot -- a step up from 250cc's!!! tabesaserarenakerebanaranakattarashii...kisha no kisha ga kisha de kisha-shita sumomo mo momo, momo mo momo, momo ni mo iroiro aru uraniwa ni wa niwa, niwa ni wa niwa niwatori ga iru
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!uw-beaver!blake!Tomobiki-Cho!mrc From: mrc@Tomobiki-Cho.CAC.Washington.EDU (Mark Crispin) Newsgroups: comp.arch Subject: Re: What is a Mainframe? Message-ID: <3051@blake.acs.washington.edu> Date: 1 Aug 89 19:51:23 GMT References: <10205@boulder.Colorado.EDU> <3469@csd4.milw.wisc.edu> Sender: news@blake.acs.washington.edu Distribution: usa Organization: Mendou Zaibatsu, Tomobiki-Cho, Butsumetsu-Shi Lines: 16