Okay,
I have been sucked into this conversation:
I would also
suggest that if the UniData folks were satisfied with PI/PI Open/
UniVerse,
they would not have gone to the trouble of creating UniData.
The early versions of Unidata were poor cousins to PI/Open (imho).
One of the Unidata engineers sat in our offices many years ago and
said that their versions of Basic and the query language were based
directly on the Prime Information manuals. ( They did not have a copy
of PI in the office while they were working to emulate it.)
My understanding is that Unidata had a database, and was looking for
an established market that they could enter with it; they chose the
MV market.
Vmark (which predated Unidata by a number of years, I believe) saw an
opportunity to move the MV market from Reality and Primos to Unix,
which they correctly perceived as supplanting the existing
proprietary minicomputers of the time. It took several years after
Vmark released Universe for Prime to release their (excellent) Unix
version of Prime-Information.
Prime failed for familiar reasons: Their development and marketing
structure was based on the high-margins of proprietary systems, and
they were the target of a prolonged hostile takeover attempt, which
dissuaded customers from updating their equipment and cost the
company the farm. In retrospect, Unix had probably doomed them; I
doubt that they could have shifted their structure fast enough to be
successful with it.
:-)
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