RE: [cobalt-users] apology... I think...

["Andy Jacobs" <andy@xxxxxxxxxxxxxx>]

Andy Jacobs
Media Marks
Web Design, Hosting, Site Promotion
Tel: 023 9241 3880
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> -----Original Message-----
> From: cobalt-users-admin@xxxxxxxxxxxxxxx
> [mailto:cobalt-users-admin@xxxxxxxxxxxxxxx]On Behalf Of Jeff Lasman
> Sent: 16 March 2002 17:51
> To: cobalt-users@xxxxxxxxxxxxxxx
> Subject: Re: [cobalt-users] apology... I think...
>
>
> Phil Beynon wrote:
>
> > micros to multi user minis covering unix varieties, Microsoft, cpm, mpm,
> > pick, and lots of now long dead O/S.
>
> I also did a lot with M/PM.  (Gary Kildahl was a friend for years) and
> with the OSM Zeus, which ran it's own version of multi-user CP/M, one
> Z-80 processor board per user, sharing the hard disk.  Kind of like
> Blades today; what goes around comes around, I guess <smile>.
>
> I was also VP of software development for the Lobo, which also had 128k
> and ran either LDOS (making it a TRS-80 Model I work-alike) or CP/M or
> CP/M Plus (Version 3).  According to Gary we had the best implmentation
> of CP/M plus there ever was, but it had very little to do with me; it
> was that the 12kk of memory could be broken up so well into pages and
> all of them could be switched in and out of memory.  Most S-100 bus
> computers were limited in that the first page could never be swapped
> out; we didn't have that limitation.  Good hardware design <smile> which
> I had nothing to do with.
>
> > To be honest the Raq is probably one of the most interesting things I've
> > gotten into for a while now, I've explored PCs to the point
> where they are
> > just boring!
>
> I agree.  I just downloaded Kylix.  It'll be interesting.
>
> > 128Mb on a TRS80 - you must have upgraded the PSU a bit then!
>
> Brain fart.  128k.  And 4mHz as well.  It was the OSM Zeus that ran at
> 8mHz, I think.

I still have my ZX80 and ZX81.  The ZX81 had been severely boosted to 16K of
memory.

My first PC ran at 4.77Mhz but I had added a maths co pro which upped it to
8.something.  Mind you, I cut my teeth in my career on core memory and
fixing disk controllers when the most important tool was a wire wrap tool.
I remember going to the Science Museum in London with a girlfriend where
they have an old McDonnell Douglas "key to disk" system in miniature.  The
exact same system I looked after as a trainee.

Programming 6809 in Hex on a 7 segment display cam before that and I
remember thinking how fantastic it was to move away from the 6502.  How
decadent we felt with double the registers to play with!

Andy Jacobs
Media Marks
Web Design, Hosting, Site Promotion
Tel: 023 9241 3880
www.mediamarks.net