Robert Wessel <[email protected]> writes: > DECsystem-10 actually. Although that often is considered a mainframe, > just not an IBM one.
cp/m history http://en.wikipedia.org/wiki/CP/M#History prior to developing cp/m (73/74), kildall had worked with cp67/cms at naval postgraduate school. cp/m reflects some of both cms & dec10/tops10 ... some additional history (dec10 machines used at intel at the time) http://web.archive.org/web/20071011100440/http://www.khet.net/gmc/docs/museum/en_cpmName.html lot of cms traces back to mit ctss system on ibm 7094 ... which also influences pdp10/tops10 http://en.wikipedia.org/wiki/PDP-10 tops10 http://en.wikipedia.org/wiki/TOPS-10 note the tops10 scheduler described in above is similar to description for ctss and what was in release 1 of cp67 delivered jan1968. as undergraduate, one of the (other) things i rewrote was schedule for dynamic adaptive resource manager (sometimes called fairshare scheduler because default resource policy was fairshare) ... some past posts http://www.garlic.com/~lynn/subtopic.html#fairshare other tops10 history ... work from mit being moved into DEC machine http://www.princeton.edu/~achaney/tmve/wiki100k/docs/TOPS-20.html similar but different, including several emails from 1980 ... writting 3880 control floppies http://www.garlic.com/~lynn/2006v.html#17 Ranking of non-IBM mainframe builders? and http://www.garlic.com/~lynn/2006v.html#19 Ranking of non-IBM mainframe builders? There was joke that the 64kbyte os/360 simulation in cms was much more cost effective os/360 simulation than the 8mbyte one in MVS. It turns out that los gatos did 12kbyte additional os/360 simulation ... which got many things running. part of the problem was that the burlington development group had previously done lots of enhancements to cms os/360 including things like read/write os/vtoc disks directly supporting lots of os/vtoc disk file formats ... but it hadn't been released yet ... when POK got the development group shutdown and the group moved to pok to support mvs development ... and the people responsible had managed to escape the move (part of the joke, that the head of POK was a major contributor to DEC VMS operating system). recent references: http://www.garlic.com/~lynn/2014.html#4 Application development paradigms [was: RE: Learning Rexx] http://www.garlic.com/~lynn/2014b.html#92 write rings http://www.garlic.com/~lynn/2014b.html#105 Happy 50th Birthday to the IBM Cambridge Scientific Center http://www.garlic.com/~lynn/2014d.html#17 Write Inhibit http://www.garlic.com/~lynn/2014d.html#83 Difference between MVS and z / OS systems -- virtualization experience starting Jan1968, online at home since Mar1970 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
