Bill: We ran VS2 for a while. It was a stepping stone to MVS. I was called into the chief of the DC and was told that I was to explain to him the differences between MVT/VS2/MVS in a few minutes. I walked up to the dry board and sketched Virtual Memory out to them and after 15 minutes I walked out as they understood it and these people were not technical. They knew the buzz words that was it.
Ed > On Apr 17, 2017, at 12:06 PM, Bill Hitefield > <[email protected]> wrote: > > Perhaps I did not accurately read the introductory post for this topic, but > if we are considering 360 and its descendants, I am surprised no one has > mentioned either SVS or VS1 (though I did see where MVS was mentioned). One > of my first jobs out of college (70s) involved a conversion from SVS to VS2. > A later job involved bringing a site from VS1 to MVS/370. > > > > Bill Hitefield > > Dino-Software Corporation > > 800.480.DINO > > 423.878.5660 > > www.dino-software.com > > > > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Mike Schwab > Sent: Monday, April 17, 2017 12:18 PM > To: [email protected] > Subject: Re: Mainframe operating systems? > > > > http://hercules390.996247.n3.nabble.com/What-is-the-Telpar-OS-td17474.html > > Pretty sure they got it running. Fits on 1 track. > > > > On Sun, Apr 16, 2017 at 9:51 PM, Timothy Sipples > <[email protected]<mailto:[email protected]>> wrote: > >> I have a few more additions: > >> > >> 1. These Japanese operating systems are probably worth mentioning: > >> > >> Hitachi VOS3 > >> Fujitsu MSP > >> Fujitsu XSP > >> > >> VOS3 and MSP are proven forks of IBM MVS/XA (at least, and likely also > >> MVS/ESA). XSP might be a fork of DOS/VSE. (I'm less familiar with that > >> one.) If you want to hang your hat on supported compatibility with > >> real world IBM machines then VOS3 probably wins. As I recall, VOS3 > >> officially runs on z800 and z890 machines, at least. Hitachi built the > >> z800 in a collaboration with IBM, and also for its own domestic sales > >> in Japan, so that one is not a great surprise. > >> > >> To my knowledge, Fujitsu is still nominally in the mainframe business > >> in Japan, and their machines are basically ESA/390 machines. Both MSP > >> and XSP remain ESA (31-bit), as far as I know. Hitachi's Japanese > >> domestic market machines are ESA/390 machines with very modest, > >> non-z/Architecture 64-bit extensions that VOS3 only lightly exploits. > >> > >> Speaking of related machines, did RCA's operating systems like VMOS > >> and TSOS ever run on IBM System/360 machines? > >> > >> 2. TCSC's EDOS/VS and EDOS/VSE were interesting forks of DOS/VS Release 34. > >> EDOS/VS and EDOS/VSE were compatible with machines that did not have > >> virtual storage support, including System/360 machines. That's why > >> they enjoyed some popularity. NCSC produced a UNIX subsystem for EDOS > >> called PWS, inspired by Coherent UNIX. I'm not sure if NCSC ever made > >> PWS available for IBM DOS/VSE and its successors. > >> > >> 3. I don't think anybody mentioned IBM's OS/44 and PS/44 yet. Those > >> were operating systems for the System/360 Model 44, a scientific market >> machine. > >> > >> 4. I don't think anybody mentioned VM/IX and IX/370 yet, from > >> Interactive Systems Corporation (ISC). Those were different than > >> AIX/370 and AIX/ESA, based on Locus Computing's work. Bell Labs had a > >> UNIX operating system for > >> System/370 even before ISC's products, but I don't know much about that. > >> MVS OpenEdition was the successor to these efforts, although with yet > >> another, different, much better technology base. MVS OpenEdition begat > >> z/OS UNIX System Services. > >> > >> 5. Boston University's VPS/VM traced its roots to McGill University's > >> RACS (later RAX, then MUSIC/SP) operating system. As far as I know > >> VPS/VM always ran under IBM's VM, but perhaps that wasn't required. > >> VPS/VM and MUSIC/SP are thus "cousins," one could argue. > >> > >> 6. TELPAR dates to the early 1970s, but I don't know much about it. I > >> think it's available in open source (PL/360) form, though. Has anybody > >> tried compiling and running it? > >> > >> 7. VP/CSS, developed by National CSS, was an evolution of CP/CMS. > >> VP/CSS had some efficiency advantages back in the 1970s. > >> > >> 8. Some people might classify Jan Jaeger's ZZSA as an operating > >> system, a very basic one. > >> > >> 9. Did the UCSD p-System ever end up on System/370 or System/390 machines? > >> It ended up on almost every other processor. > >> > >> ---------------------------------------------------------------------- > >> ---------------------------------- > >> Timothy Sipples > >> IT Architect Executive, Industry Solutions, IBM z Systems, AP/GCG/MEA > >> E-Mail: [email protected]<mailto:[email protected]> > >> > >> ---------------------------------------------------------------------- > >> For IBM-MAIN subscribe / signoff / archive access instructions, send > >> email to [email protected]<mailto:[email protected]> with the >> message: INFO IBM-MAIN > > > > > > > > -- > > Mike A Schwab, Springfield IL USA > > Where do Forest Rangers go to get away from it all? > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > [email protected]<mailto:[email protected]> with the message: > INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
