Subj : Re: BBSing on CP/M
To   : Ron Lauzon
From : poindexter FORTRAN
Date : Thu Sep 23 2021 07:30:00


 RL> My thinking right now is that the ascendancy of MS-DOS really
 RL> overshadowed any enhancements of CP/M.  Like any technology, you have
 RL> companies who made the investment in that technology and don't want to
 RL> spend the money to change that, so they create a demand for updates to
 RL> the "old" technology.  For a while, at least.

I recall that both Apple and the original IBM PC had the ability with add-on 
hardware to run CP/M machines, as there were quite a few machines in 
business running CP/M, and having the "next" platform be able to run the old 
programs was a good move.

IBM won that battle, you don't see any Apple IIIs around anymore.  :)

 ac> "Concurrent CP/M" is still from Digital Research, as I've read on
 ac> Wikipedia (.de), Concurrent CP/M-86 is a later version of MP/M-86 +
 ac> CP/M-86.

I remember some of the odd-ball mini-multi-user systems out there. There was 
a PICK system that ran on a 386 and supported a handful of terminals, 
although I don't know how fast it would be.

PICK was a multi-user virtualized OS that was a database with an OS and a 
procedural BASIC and primitive SQL query language wrapped around it. Great 
little system that ran on anything from a single-user app to the 
aforementioned 386es to midrange computers in the '90s.



.... Centrifugal force reacts to the rotating frame of reference.
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