In <[EMAIL PROTECTED]>, on 02/28/2007
at 06:53 PM, "(IBM Mainframe Discussion List)" <[EMAIL PROTECTED]>
said:
>Don't know about MFT, but MVT was reclassified as Class C (meaning
>frozen, no more new releases, no more fixes) in November, 1977.
MVT was just an OS/360 sysgen option. It was OS/360 in its entirety
that was frozen.
>MVT was first virtualized in early 1974 as OS/VS2 Release 1, better
>known as SVS (Single Virtual Storage). A fuller version, OS/VS2
>Release 2, was available a year or so later, and it was quickly
>renamed MVS for Multiple Virtual Storages. MFT evolved into VS1.
My recollection is that the original virtual storage announcement for
S/370 already used the term MVS for OS/VS2 R2. However, you will still
see remnants in the code of the original names, AOS/1 and AOS/2.
>I heard about COS, for Compatibility Operating System, but I'm not
>sure what was made compatible with what (maybe it was a 360/20
>emulator running on a 360/30?).
14xx Emulator running under DOS/360.
--
Shmuel (Seymour J.) Metz, SysProg and JOAT
ISO position; see <http://patriot.net/~shmuel/resume/brief.html>
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)
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