someone smarter than Dave Cutler
in [Device Drivers]
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From: Charles Richmond on 4 Apr 2010 00:47 Pat Farrell wrote: > Charles Richmond wrote: >>> I see no connection between business degrees and the details of how the >>> business programs were implemented. That was left to the geeks while the >>> business majors became a "Master of The Universe" >> You'd think that, wouldn't you... But business majors are *required* to >> take one or two semesters of COBOL programming. And looking at computer >> printouts of business reports and such are things that most business >> graduates will have to do. > > I can believe this for some schools last century. Do you know of cases > where it is true today? > > No body looks at greenbar printouts anymore. > It seems like I started my post with "When I was in college...". That was *last* century, which is still topical in <a.f.c.>. -- +----------------------------------------+ | Charles and Francis Richmond | | | | plano dot net at aquaporin4 dot com | +----------------------------------------+
From: Gene Wirchenko on 4 Apr 2010 15:37 On Sat, 3 Apr 2010 20:31:55 +0000 (UTC), glen herrmannsfeldt <gah(a)ugcs.caltech.edu> wrote: >In alt.sys.pdp10 Gene Wirchenko <genew(a)ocis.net> wrote: >(snip, someone wrote) > >>>PSW == Program Status Word on the IBM 360 and 370. > >> I know that! What is "PSW stealing"? > >I can guess ... similar to the tricks people did with interrupts >in MS-DOS, if you want a routine to be run at certain times then >substitute a PSW pointing to it for one of the interrupt new PSW >locations. Then after your routine does what it needs to do >then LPSW for the original, which you should have stored somewhere >else. LPSW was a privileged operation, so how was it done? Sincerely, Gene Wirchenko
From: Mark Crispin on 4 Apr 2010 16:28 On Sun, 4 Apr 2010, Gene Wirchenko posted: > LPSW was a privileged operation, so how was it done? The task ran privileged. I did say "there be horrors there"... -- Mark -- http://panda.com/mrc Democracy is two wolves and a sheep deciding what to eat for lunch. Liberty is a well-armed sheep contesting the vote.
From: Walter Bushell on 4 Apr 2010 18:45 In article <hp5v1h$vhr$2(a)news.eternal-september.org>, Charles Richmond <frizzle(a)tx.rr.com> wrote: > Pat Farrell wrote: > > Charles Richmond wrote: > >> How can a university with a business school *not* have an IBM 370 or > >> clone back in the 1970's??? That is the computer that the COBOL > >> programmers would be *most* likely to use out in the business world. > > > > I'm baffled by this statement. Folks getting a Business degree are not > > likely to be programming in any language. Sure, lots of business used > > Cobol, that is one of the reasons Cobol was designed. > > > > I see no connection between business degrees and the details of how the > > business programs were implemented. That was left to the geeks while the > > business majors became a "Master of The Universe" > > > > > > You'd think that, wouldn't you... But business majors are > *required* to take one or two semesters of COBOL programming. And > looking at computer printouts of business reports and such are > things that most business graduates will have to do. And, of course, programming is one field that is used as entry language for pre-managers. In many business if start in programming and you don't make management by thirty you will be fired to make room for someone who may move into management. -- A computer without Microsoft is like a chocolate cake without mustard.
From: Gene Wirchenko on 4 Apr 2010 20:25
On Sun, 4 Apr 2010 13:28:10 -0700, Mark Crispin <mrc(a)panda.com> wrote: >On Sun, 4 Apr 2010, Gene Wirchenko posted: >> LPSW was a privileged operation, so how was it done? > >The task ran privileged. > >I did say "there be horrors there"... Ugh. Sincerely, Gene Wirchenko |