[email protected] (Timothy Sipples) writes: > 7. VP/CSS, developed by National CSS, was an evolution of CP/CMS. VP/CSS > had some efficiency advantages back in the 1970s.
early comercial online service bureau spin-offs of science center were NCSS & IDC ... both enhanced CP-67/CMS. IDC then migrated VM/370 ... and made some number of enhancements. IDC enhanced VM/370 to support single system image in loosely-coupled environment ... akin to what internal world-wide online sales&marketing support system did with load-balancing and fall-over ... HONE posts http://www.garlic.com/~lynn/subtopic.html#hone I had done CSC/VM enhancements to migrate some of virtual machine operating system control blocks to paging systems. One of the BU co-op students helping me ... referenced here: http://www.garlic.com/~lynn/2006v.html#email731212 when he graduates, joins IDC and extends the migration to all control blocks .... enabling non-distribtive execution process migration (in loosely-coupled configuration) between systems. These online service bureaus were providing 7x24 ... and enabled non-disruptive taking a system offline for scheduled maintenance (sort of like what can be done with the later locus-based aix/370), currently logged on users are transparently, non-disruptively migrated to different system. other trivia: Both NCSS and IDC move up the value chain targeting financial industry. One of the other people that went out to IDC in the 70s ... then does https://en.wikipedia.org/wiki/VisiCalc misc. past (virtual machine based) commercial online service bureaus http://www.garlic.com/~lynn/submain.html#online -- 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
