AutoCAD is a software application for computer-aided design (CAD)
 and drafting. The software supports both 2D and 3D formats. The 
software is developed and sold by Autodesk, Inc., first released in 
December 1982 by Autodesk in the year following the purchase of the 
first form of the software by Autodesk founder, John Walker. AutoCAD is 
Autodesk's flagship product and by March 1986 had become the most 
ubiquitous microcomputer design program in the world, utilizing 
functions such as "polylines" and "curve fitting". Prior to the 
introduction of AutoCAD, most other CAD programs ran on mainframe 
computers or minicomputers, with each CAD operator (user) working at a 
graphical terminal or workstation.
According to Autodesk company information, the AutoCAD software is  now 
used in a range of industries, employed by architects, project  managers
 and engineers, amongst other professions, and as of 1994 there  had 
been 750 training centers established across the world to educate  users
 about the company's primary products.

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