Editing Semi-Automatic Ground Environment (section)

==Historiography==
SAGE histories include a 1983 [[special issue]] of the ''Annals of the History of Computing'',{{r|Everett}} and various personal histories were published, e.g., Valley in 1985<ref>{{Cite journal |first=George E. |last=Valley Jr.|year=1985 |title=How the SAGE Development Began |journal=Annals of the History of Computing |volume=7 |issue=3 |pages=196–226 |doi=10.1109/MAHC.1985.10030|s2cid=30320780}}</ref> and Jacobs in 1986.<ref>{{Cite journal |last=Jacobs |first=John F{{Verify source |reason=The middle initial needs verified since the SAGE John Jacobs had middle initial "B".|date=April 2013}} |year=1986 |title=The SAGE Air Defense System: A Personal History |publisher=[[MITRE]] Corporation }}</ref>  In 1998, the SAGE System was identified as one of four "Monumental Projects",<ref>{{Cite book |last=Hughes |first=Thomas P. Hughes |year=1998 |chapter=SAGE |title=Rescuing Prometheus: Four Monumental Projects That Changed the Modern World |chapter-url=https://books.google.com/books?id=ibDuAAAAMAAJ&q=sage |chapter-format=Google Books |publisher=Pantheon |isbn=9780679411512 |access-date=2013-02-16}}</ref> and a SAGE lecture presented the vintage film ''In Your Defense'' followed by anecdotal information from [[Les Earnest]], [[James Wong (computer scientist)|Jim Wong]], and [[Paul N. Edwards|Paul Edwards]].{{r|SageTalk}}  In 2013, a copy of a 1950s cover girl image programmed for SAGE display was identified as the "earliest known figurative [[computer art]]".{{r|EdwardsBenj}}  Company histories identifying employees' roles in SAGE include the 1981 ''System Builders: The Story of SDC''<ref>{{Cite book |last=Baum |first=Claud |year=1981 |title=System Builders: The Story of SDC |location=Santa Monica |publisher=System Development Corporation}} (cited by Schaffel p. 205/311: "''Although technically a Lincoln unit, SDC did much of its work at RAND Headquarters in Santa Monica, California.  RAND designers developed the Model I software that allowed realistic training for [SAGE] technicians scheduled to operate the first direction center.''")</ref> and the 1998 ''Architects of Information Advantage: The MITRE Corporation Since 1958''.<ref>{{Cite report |last1=Dyer |first1=Davis  |last2=Dennis |first2=Michael Aaron |date=December 1998 |title=Architects of Information Advantage: The MITRE Corporation Since 1958 |publisher=Community Communications Corp |isbn=1581920121 }}</ref>