Path: utzoo!attcan!uunet!husc6!mailrus!ames!killer!elg
From: elg@killer.UUCP (Eric Green)
Newsgroups: comp.arch
Subject: Re: stack machines (Burroughs)
Keywords: RISC, real-time
Message-ID: <4464@killer.UUCP>
Date: 15 Jun 88 05:30:08 GMT
References: <1521@pt.cs.cmu.edu> <1532@pt.cs.cmu.edu> <476@pcrat.UUCP> <2868@louie.udel.EDU> <370@dlscg1.UUCP> <3147@polyslo.UUCP> <3693@saturn.ucsc.edu> <853@wucs2.UUCP>
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In message <853@wucs2.UUCP>, jps@wucs2.UUCP (James Sterbenz) says:
$In article <3693@saturn.ucsc.edu> haynes@ucscc.UCSC.EDU (Jim Haynes) writes:
$>Well there are different meanings to "sophisticated", but for real
$>sophistry you need to see a system that uses a lot of letter
$>abbreviations like JES and MVS and VS1 and VM and CMS and OS and ...
$>where each flavor needs a different compiler and file system.
$
$the ONLY currently available versions are MVS(/SP) and MVS/XA.

$VM is a completely different operating system consisting of
$VM, the hypervisor (CP-44 -> CP-67 -> CP) and various
$guest operating systems, of which CMS is one.   MVS can run under CP.   

Fact remains that VM/CMS and MVS use different file systems, different
compilers, different application software, different everything just
about. How sophisticated can you get, huh?

I get the impression from looking at the IBM manuals that IBM is
somewhat embarrassed by the success of VM/CMS, and is trying to slowly
phase it out or merge it with MVS... BLETCH!  IBM already has two
top-heavy, poorly-designed OS's, and wants to make an even more
top-heavy poorly-designed OS? Now I know the heritage of OS/2
(half-OS) :-(. 

Hard to believe that IBM can have an operating system ten times more
complex than Unix V7, with 1/10th the power and elegance. But then
again, nobody ever bought IBM for their technical prowness (although
their 3090 certainly has some neat hardware).

--
Eric Lee Green    ..!{ames,decwrl,mit-eddie,osu-cis}!killer!elg
          Snail Mail P.O. Box 92191 Lafayette, LA 70509              
"Is a dream a lie if it don't come true, or is it something worse?"