Interesting walking tour of a town where the Fourmilab Switzerland is, home of "...John Walker, founder of Autodesk, Inc. (its history link) and co-author of AutoCAD". I used AutoCAD from version 2.0 to 12, first at Greenhouse Consultants and then at Grossman & Associates, firms in the public archaeology business. Autodesk then began using years, 2000, etc., for versions. We used to rent a color plotter (large format multi-pen plotter) and obtain upgrades from the Princeton Architectural Press, publisher, around the corner at 37 East 7th Street near where Peter Stuyvesant once had the "bouwerie" or farm though today's Bowery a somewhat different neighborhood that I've had to study.
AutoCAD software competes with Bentley, Inc. who sells "seats" i.e., hardware and the software, and they once tried to lure me over to the "darkside" at version 13 with a $500 exchange. Prometric of Markham, Canada, whom we were working with, was developing a close-range photogrammetric module with RolleiMetric and Schneider Optics, as an AutoCAD developer, which it had many of. Still based on one of the most or the most accurate precision mathematics in programming which is important in its primary uses, i.e, computer aided design, archaeology presents interesting problems for "non-regular" depictions.