Presumably OS/VS2 Release 3, the second release of MVS. The MVS releases of OS/VS2 ran from 2.0 to 3.8, with a bunch of optional selectable units ("By the pricking of my thumb, SU 7 this way comes.")
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on behalf of David Spiegel [00000468385049d1-dmarc-requ...@listserv.ua.edu] Sent: Friday, December 2, 2022 6:41 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Computers Hi Leonard, You said: "... That computer center had MVS 3.0 running in the mid 1970s. ..." Is "MVS 3.0" a typo? (I do not recall ever hearing of MVS 3.0.) Thanks and regards, David On 2022-12-02 02:15, Leonard D Woren wrote: > Bill Hitefield wrote on 11/30/2022 10:39 AM: >> In college we had an IBM 1130 in the computer lab. Those of us >> working in the lab discovered an AM radio placed near the console >> switches made odd noises when you ran Fortran programs and set the >> radio to a specific "station". Further investigation revealed you >> could change the tone of the noise by using the "e to the x" function >> and varying the value of "x". Our goal in life then became to play >> "Smoke on the Water" using that radio. The temp wasn't too great, but >> you could recognize the main riff! >> >> Bill Hitefield >> Dino-Software Corporation >> 800.480.DINO >> https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.dino-software.com%2F&data=05%7C01%7Csmetz3%40gmu.edu%7Cdee8b1d5fb404060d1ff08dad45a3d7e%7C9e857255df574c47a0c00546460380cb%7C0%7C0%7C638055781337271398%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=5V1okCO5Sk%2BgqFt9zdA1nb32gMtrWUmTxIJQrHQmq8w%3D&reserved=0 >> >> > > I don't remember it very well, but I think the same could be done to > some extent on some 360 models. > > In the mid-1970s, a college friend had a job as an off-hours computer > operator at RAND (amusingly, where that 1970 film was made). He > wrote, and a musical friend tuned, a program which played music on a > 2400 series tape drive by writing various length blocks -- the shorter > the repeated block, the higher the note. I think one of their 2 songs > was Puff the Magic Dragon. It was just hilarious to hear recognizable > music from a tape drive. The program wore out tapes pretty quickly > though because all those short blocks were tough on the tape. One > long channel program IIRC to keep the music from pausing when a > different job was dispatched. > > Footnote: That computer center had MVS 3.0 running in the mid 1970s. > It was the first time that I saw MVS with lots of new stuff compared > to MVT 21. But no TSO -- they ran Wylbur. > > > /Leonard > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN