terminology and history (was Re: Re updating BIOS)
John Levine
johnl at iecc.com
Wed Feb 12 17:04:27 UTC 2020
In article <202002120724.01C7OcSW005991 at sdf.org> you write:
>that later virtual memory systems had. Although offered by Cambridge University,
>rather than IBM, CP-67/CMS provided virtual machine support.
Uh, no, it was the IBM Cambridge Scientific Center in Cambridge MA.
It was in the same building where Project MAC was. CP was a
skunkworks project, originally on a modified 360/40, then on a /67.
It was quite embarassing that CP/67 was so much faster and more
reliable than the flagship TSS. I used both; TSS would have been
great if if worked, but it didn't. It was also not surprising, since
CP was written by a small skilled staff while TSS had hordes of
programmers trying to implement undebugged specs.
>> [MS/PC/DR/Free]DOS was a lot more like a mainframe batch operating
>
> No, that was my point. They were all like monitor systems (e.g., IBM
>1620/1710 Monitor I). They did almost nothing for the user or program except
>for loading an executable program from a disk drive and accepting a return of
>control when the application program ended, ...
They also provided a file system, which was pretty important. I'd say they
didn't provide quite as much as DOS/TOS but it was more than a batch monitor.
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