Editing AutoCAD (section)

===Origins===
[[File:Man using AutoCAD (1987).jpg|thumb|A man using AutoCAD 2.6 to digitize a drawing of a school building.]]
AutoCAD was derived from a program that began in 1977, and then released in 1979<ref name=RiddleAbout>{{cite web|last=Riddle|first=Michael|title=About|url=http://www.michaelriddle.com/?page_id=2|access-date=24 January 2014|quote=I’ve been building CAD products for over 29 years now, starting with Interact for the Marinchip 9900 released back in 1979, one of the first PC-based CAD programs available. Interact went on to become the architectural basis for the early versions of AutoCAD. I was one of the original 18 founders of that company.|archive-date=27 October 2016|archive-url=https://web.archive.org/web/20161027035507/http://www.michaelriddle.com/?page_id=2|url-status=dead}}</ref> named ''Interact CAD'',<ref>{{Cite web |url=http://www.studiodaily.com/2012/01/the-fascinating-story-of-how-autodesk-came-to-be-part-1/ |title=The Fascinating Story of How Autodesk Came to Be (Part 1) |work=Studio Daily |publisher=Access Intelligence |first=Peter |last=Plantec |date=7 January 2012 |access-date=25 February 2013 |archive-date=12 November 2020 |archive-url=https://web.archive.org/web/20201112035641/https://www.studiodaily.com/2012/01/the-fascinating-story-of-how-autodesk-came-to-be-part-1/ |url-status=dead}}</ref><ref>{{Cite web |url=http://www.michaelriddle.com/?page_id=2 |title=About |work=Michael Riddle's Thoughts |access-date=25 February 2013 |archive-date=27 October 2016 |archive-url=https://web.archive.org/web/20161027035507/http://www.michaelriddle.com/?page_id=2 |url-status=dead}}</ref><ref>{{Cite web |url=http://www.retrothing.com/2007/05/mike_riddles_pr.html |title=Mike Riddle's Prehistoric AutoCAD |work=Retro Thing |first=James |last=Grahame |date=17 May 2007}}</ref> also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle.<ref>{{cite web|last=Walker|first=John|title=Information letter #5|url=http://www.fourmilab.ch/autofile/www/section2_9_7.html|access-date=24 January 2014|date=1 May 1982}}</ref><ref name=3DCADWorld>{{cite web|last=Yare|first=Evan|title=AutoCAD's Ancestor|url=http://www.3dcadworld.com/autocads-ancestor/|publisher=3D CAD World|access-date=24 January 2014|date=17 Feb 2012}}</ref>

The first version by Autodesk was demonstrated at the 1982 [[Comdex]] and released that December. AutoCAD supported [[CP/M]]-80 computers.<ref>{{citation|title=One Company's CAD Success Story|url=https://books.google.com/books?id=qS4EAAAAMBAJ&pg=PA39|publisher=InfoWorld|access-date=19 July 2014|date=3 December 1984}}</ref> As Autodesk's flagship product, by March 1986 AutoCAD had become the most ubiquitous CAD program worldwide.<ref>{{citation|title=25 Year retrospective|chapter-url=http://www.cgw.com/Publications/CGW/2002/Volume-25-Issue-2-Feb-2002-/25-YEAR-RETROSPECTIVE-br-Part-2-CAD-CAM-CAE.aspx|year=2011|chapter=Part 2 CAD/CAM/CAE|publisher=Computer Graphics World|archive-url=https://web.archive.org/web/20111104104652/http://www.cgw.com/Publications/CGW/2002/Volume-25-Issue-2-Feb-2002-/25-YEAR-RETROSPECTIVE-br-Part-2-CAD-CAM-CAE.aspx |access-date=29 March 2012|archive-date=2011-11-04}}</ref> The first UNIX version was Release 10 for [[Xenix]] in October 1989, while the first version for Windows was Release 12, released in February 1993.<ref>{{cite web |title=Autodesk Puts the AutoCAD up under the SCO Xenix V.386 |date=October 10, 1989 |publisher=New Statesman Media Group Ltd. |url=https://techmonitor.ai/technology/autodesk_puts_the_autocad_up_under_the_sco_xenix_v386 |access-date=December 21, 2023}}</ref><ref>{{cite web |url=https://www.shapr3d.com/history-of-cad/autodesk-and-autocad |date=March 27, 2023 |title=Autodesk and AutoCAD |author=David Weisberg |publisher=Shapr3D Zrt |access-date=December 21, 2023}}</ref>