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Article #625088Re: DEC introduces PDP-6 [was Re: IBM introduces System/360]
From: Anne Lynn Wheeler
Date: Fri, 20 Jul 2018 21:12
Date: Fri, 20 Jul 2018 21:12
98 lines
5781 bytes
5781 bytes
hanc...@bbs.cpcn.com writes: > Timesharing in 1969: > https://books.google.com/books?id=ekMxAAAAIBAJ&lpg=PA19&dq=%22burroughs%20b5500%22&pg=PA19#v=onepage&q=%22burroughs%20b5500%22&f=false CTSS online/interactive timesharing: https://en.wikipedia.org/wiki/Compatible_Time-Sharing_System By July, 1961[5] a few time sharing commands had become operational on the Computation Center's IBM 709, and in November 1961, Fernando J. Corbató demonstrated at MIT what was called the "Experimental Time-Sharing System". On May 3, 1962, F. J. Corbató, M. M. Daggett and R. C. Daley published a paper about that system at the Spring Joint Computer Conference.[6] Robert C. Daley, Peter R. Bos and at least 6 other programmers implemented the operating system, partly based on the Fortran Monitor System. The system used an IBM 7090, modified by Herbert M. Teager, with added 3 Flexowriters for user consoles, and maybe a timer. ... snip ... The IBM 7094 and CTSS http://multicians.org/thvv/7094.html then some of the CTSS people went to the 5th flr to do MULTICS https://en.wikipedia.org/wiki/Multics Initial planning and development for Multics started in 1964, in Cambridge, Massachusetts. Originally it was a cooperative project led by MIT (Project MAC with Fernando Corbató) along with General Electric and Bell Labs. It was developed on the first GE 645 computer delivered to MIT in 1965. Multics history http://multicians.org/history.html Multics/Unix related https://en.wikipedia.org/wiki/Multics#Unix Other CTSS people went to the science center on the 4th flr and did cp40/cms (using modified 360/40 with hardware virtual memory support) http://www.garlic.com/~lynn/cp40seas82.txt which morphs into cp67/cms when standard 360/67 with virtual memory becomes available https://en.wikipedia.org/wiki/CP/CMS above history somewhat garbled. There was CP67 "L" floor production system at Cambridge (and I distributed/supported for othere internal datacenters). There were the "H" updates to CP67 "L" ... which provided optional 370 virtual machines (new instructions and slightly different format for virtual memory tables). And there was the "I" udpates to CP67 "H", which was CP67 modified to run in a 370 machine instead of 360/67 machine. CP67I was regularly running production in CP67H virtual machines a year before the first 370 engineering machine with virtual memory support was available. CP67I with San Jose updates to support 3330 disks & 2305 fixed-head drum (CP67SJ) ran production on large number of internal 370s ... well before VM370 was available. more CP67 & science center history in Melinda Varian's paper http://www.leeandmelindavarian.com/Melinda/25paper.pdf in 1968, there were some science center people joined NCSS to do CP67/CMS commercial online timesharing service bureau https://en.wikipedia.org/wiki/National_CSS and some other science center people joined with some Lincoln Labs people to form IDC CP67/CMS commerccial online timesharing service bureau ... especially IDC quickly moved up the value stream specializing in services for the financial industry. https://en.wikipedia.org/wiki/Interactive_Data_Corporation trivia: one of the people from the 5th flr joined IDC (out in waltham) ... and then a decade later did spreadsheet: https://en.wikipedia.org/wiki/VisiCalc other 4th generation language trivia: https://en.wikipedia.org/wiki/RAMIS_(software) https://en.wikipedia.org/wiki/Nomad_software https://en.wikipedia.org/wiki/FOCUS https://en.wikipedia.org/wiki/Fourth-generation_programming_language and vm370 commercial online service bureau https://en.wikipedia.org/wiki/Tymshare TYMSHARE started offering their CMS-based online computer conferencing system "free" to (IBM user group) SHARE https://www.share.org/ in AUG1976 as VMSHARE, archives here: http://vm.marist.edu/~vmshare TYMSHARE on bitsavers: http://www.bitsavers.org/pdf/tymshare/ science center posts http://www.garlic.com/~lynn/subtopic.html#545tech commercial online/interactive timesharing posts http://www.garlic.com/~lynn/submain.html#timeshare -- virtualization experience starting Jan1968, online at home since Mar1970
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