Larry wrote:
>>
What Microsoft bought from Seattle Software was
Concurrent CP/M by Digital Research. Seattle Software had modified it for
the 8086 microprocessor. Concurrent CP/M was a multi tasking OS, that
Microsoft stripped the multi tasking code out of because they couldn't deal
with it.
<<
I disagree, Tim Patterson at Seattle Computer Works wrote Ms Dos based on using
the published API interface spec for CPM80. He just went to a local store and
bought the API spec in a book. Concurrent CP/M was a much better later product
by D.R. that shared some of the basic API but extended it to multi-tasking. You
could buy either PcDos(MsDos) or CPM86 and later concurrent CPM86 with the
original PC, but the IBM pricing structure made it a no brainer for most users
to buy PCDos (MsDos).
Regards,
Tim Hughes
>>Hi100@xxxxxxx<<
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