🚀 go-pugleaf

On Tue, 20 Mar 2018 15:21:20 -0700
Peter Flass <peter...@yahoo.com> wrote:

> Ahem A Rivet's Shot <ste...@eircom.net> wrote:
> > On Tue, 20 Mar 2018 16:11:20 -0400
> > Andreas Kohlbach <a...@spamfence.net> wrote:
> > 
> >> On Tue, 20 Mar 2018 08:34:53 +0000, Ahem A Rivet's Shot wrote:
> >>> 
> >>> The next important thing after the PET/Apple/TRS-80 appearing
> >>> was CP/M bringing with it industry standard applications (WordStar in
> >>> particular).
> >> 
> >> A shame CP/M was killed of by MS-DOS. Would had been interesting to see
> > 
> > 	Indeed it was, although MP/M kept it going in some places until
> > the 80286 and XENIX became a better multi-user option.
> > 
> >> what happened to it if not. Especially when the GUIs came out in the
> >> mid
> >> 80. I know GEM ran on it, but (other than used in an ATARI ST and for
> >> UNIX/Linux) it never really took off or was developed further.
> > 
> > 	There was a lot going on in the multi-user/tasking area with
> > CP/M and MP/M in the latter days - things like the Micromation machine
> > with a Z80 and 64K behind each terminal connector running CP/M and
> > another one running MP/M managing the whole lot, or the Televideo star
> > networks of CP/M and MP/M machines.
> > 
> 
> Okay, I was going to ask what CP/M had that DOS didn't (except nostalgia),

	Users - sort of, CP/M had a user ID concept that could partition
what you saw on the disc.

> since the latter was derived from the former. Once you include MP/M I can
> see a difference. On the other hand it's a shame the unix wasn't able to
> get into this space earlier - resource and legal requirements?

	Price! Unix licences tended to cost around $1000 per machine which
wasn't so bad for 10-20 user machines (68K/QIC02 box like a fridge for the
most part) but a non-starter for 1-3 user machines.

> It took
> Linus to turn unix into a true, and widely-used,  personal operating
> system.

	SCO XENIX turned the tide, just before Linux emerged, by dropping
the licence price to something rather more reasonable - there were quite a
lot of systems put together based on networks of PCs running SCO XENIX.

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