Hi,
i think you get more information about old CAD systems. They were
expensive
and closed systems. The productivity was not what you are saying. Did you
use those systems yourself? I started 1980, those systems were very
difficult to use. I used CD2000, Medusa, Catia, Calma and from 1986
AutoCAD.
The OS was not great but the program itself was good enough and easier to
use and customize than the older CAD programs. We started to use
applications very early and that was a huge advantage. The history has
proved, AutoCAD has been the most succesful CAD company. It has many flaws
but the others are not that much better.
J.
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