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'''Tim Paterson''' (nato nel [[1956]]) è un programmatore di computer [[Stati Uniti d'America|Statunitense]], famoso per essere l'autore originale di [[MS-DOS]], il più diffuso [[sistema operativo]] degli [[anni 1980|anni '80]].
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'''Tim Paterson''' (born [[1956]]) is an [[United States|American]] [[computer programmer]], best known as the original author of [[MS-DOS]], the most widely used [[operating system]] in the 1980s.
Educated at the [[University of Washington]], Paterson worked as a repair [[technician]] for a computer store in [[Seattle, Washington]]. After he graduated ''[[magna cum laude]]'' in June [[1978]], he went to work for [[Seattle Computer Products]] as a designer and engineer. He designed a schematic of Microsoft's [[Z-80 SoftCard]] which had a Z80 CPU and ran the [[CP/M]] operating system on an Apple II.
A month later, Intel released the [[8086]] CPU, and Paterson went to work designing an [[S-100 bus|S-100]] 8086 board, which went to market in November [[1979]]. The only commercial software that existed for the board was a standalone version of [[Microsoft BASIC]]. The standard CP/M operating system at the time was not available for this CPU and without a true operating system, sales were slow. Paterson began work on QDOS (Quick and Dirty Operating System) in April [[1980]] to fill that void, copying the [[Application programming interface|API]]s of CP/M from sources including the published CP/M manual so that it would be highly compatible. QDOS was soon renamed as [[86-DOS]]. Version 0.10 was complete by July 1980. By version 1.14 86-DOS had grown to 4,000 lines of assembler code.<ref>
{{cite book
| last = Duncan
| first = Ray
| coauthors =
| title = The MS-DOS Encyclopedia
| origyear = 1988
| url =
| edition =
| year =
| publisher = Microsoft Press
| ___location =
| id = ISBN 1-55615-049-0
| pages = p. 20
}}</ref>
In December 1980 [[Microsoft]] secured the rights to market 86-DOS to other hardware manufacturers.
While acknowledging that he made 86-DOS compatible with CP/M, Paterson has maintained that the 86-DOS program was his original work and has denied allegations that he referred to CP/M's code while writing it.<ref>{{cite journal|
last=Paterson|
first=Tim|
date=1994-10-03|
title=From the Mailbox: The Origins of DOS|
journal=Microprocessor Report|
url=http://www.ece.umd.edu/courses/enee759m.S2000/papers/paterson1994-kildall.pdf|
accessdate=2006-11-20}}</ref>
When a book appeared in 2004 claiming that 86-DOS was an unoriginal "rip-off" of CP/M,<ref>Evans, Donald. ''They Made America: From the Steam Engine to the Search Engine''</ref> Paterson sued the authors and publishers for [[defamation]].<ref>{{cite news|
date=2005-03-02|
title=Programmer sues author over role in Microsoft history|
work=USA Today|
url=http://www.usatoday.com/tech/news/2005-03-02-ms-coding-dis_x.htm|
accessdate=2006-11-20}}</ref><ref>''[http://seattlepi.nwsource.com/dayart/20050302/dossuit.pdf Paterson v. Little, Brown, and Co., et al.]'' (2005-02-28). [[United States District Court for the Western District of Washington|W. D. Wash.]] Retrieved on 2006-11-20.</ref>
The judge found that Paterson failed to 'provide any evidence regarding “serious doubts” about the accuracy of the [[Gary Kildall]] chapter. Instead, a careful review of the Lefer notes ... provides a research picture tellingly close to the substance of the final chapter' and the case was dismissed on the basis that the book's claims were [[First Amendment to the United States Constitution|constitutionally protected]] opinions and not provably false.<ref>{{cite news|
date=2007-07-30|
title=MS-DOS paternity suit settled|
work=The Register|
url=http://www.theregister.co.uk/2007/07/30/msdos_paternity_suit_resolved/|
accessdate=2007-07-31}}</ref>
Paterson left SCP in April [[1981]] and worked for Microsoft from May 1981 to April [[1982]]. After a brief second stint with SCP, Paterson started his own company, [[Falcon Technology]], which was bought by Microsoft in [[1986]]. Paterson did a second stint with Microsoft from 1986-[[1988]] and a third stint from [[1990]]-[[1998]]. During his third stint at Microsoft, he worked on [[Visual Basic]].
After leaving Microsoft a third time, Paterson founded another software development company, [[Paterson Technology]], and also made several appearances on the [[Comedy Central]] [[television]] program ''[[Battlebots]]''. Paterson also races rally cars in the [[SCCA]] [[SCCA Pro Rally|Pro Rally]] series, and even engineered his own trip computer which he integrated into the axle of a four-wheel drive [[Porsche 911]].
==Quotes==
{{quotation|"Life begins with a disk drive."|[[Tim Paterson]] <ref name="The Roots of DOS">{{cite web
|url=http://www.patersontech.com/Dos/Softalk/Softalk.html
|title="The Roots of DOS"
|year=[[1983]]
|accessdate=2007-06-18
|last=Hunter
|first=David
}}</ref>}}
{{quotation|"IBM wanted CP/M prompts. It made me throw up."|[[Tim Paterson]] <ref name="The Roots of DOS">{{cite web
|url=http://www.patersontech.com/Dos/Softalk/Softalk.html
|title="The Roots of DOS"
|year=[[1983]]
|accessdate=2007-06-18
|last=Hunter
|first=David
}}</ref>}}
==Notes==
{{reflist}}
==External links==
*[http://www.patersontech.com/ Paterson Technology website], a company founded by Tim Paterson
[[Category:American computer programmers|Paterson, Tim]]
[[Category:Microsoft employees|Paterson, Tim]]
[[Category:1956 births|Paterson, Tim]]
[[Category:Living people|Paterson, Tim]]
[[Category:Computer pioneers]]
[[Category:University of Washington alumni|Paterson, Tim]]
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==Collegamenti esterni==
*[http://www.patersontech.com/ Paterson Technology website], società fondata da Tim Paterson
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