RJT> TW> That is how it started I think .Like CP/M since then there are soem
RJT> TW> non compatable implementations. BUT it is Still an Operating System
RJT> TW> tha same as the mostly NON compatable versions of CP/M.

RJT>What are you talking about with non-compatible versions of CP/M?  The major
RJT>differences were in the different manufacturers using different disk format
RJT>but the OS itself,  and most of the software,  worked across all machines
RJT>pretty much.  There were programs (Uniform, Media Master) that worked to ge
RJT>across disk formats,  too.

 Well in my Experience the program compatability was poor Particularly
 with thc Major manfacturers. They DID slightly tweek their CP/M OS and
 delibertly wrote the programs to need those tweeks to LOCK YOU IN!!

Thewre were of course some exceptions, THAT is why I used the word
"SOME" i nmy post.
The most notable one was KayPro and Commodore making their CP/M
machines compatable with the Osborne CP/M that had a somewhat large
base of programs to draw from.
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 þ SLMR 2.1a þ This note from El Cajon California USA