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Itt írta meg Thompson a [[B programozási nyelv]]et, amely a Ritchie által írt [[C (programozási nyelv)|C programozási nyelv]] elődjének tekinthető.
<!--Thompson had developed the [[CTSS]] version of the editor [[QED (text editor)|QED]], which included [[regular expression]]s for searching text. QED and Thompson's later editor [[ed (UNIX)|ed]] (the default editor on Unix) contributed greatly to the eventual popularity of regular expressions, previously regarded mostly as a tool (or toy) for [[logician]]s. Regular expressions became pervasive in Unix text processing programs (such as [[grep]]). Almost all programs that work with regular expressions today use some variant of Thompson's notation for them.
Along with [[Joseph Condon]], he created the hardware and software for [[Belle (chess machine)|Belle]], a [[chess computer]]. He also wrote programs for generating the complete enumeration of [[chess]] endings, for all 4, 5, and 6-piece endings, allowing chess-playing computer programs to make "perfect" moves once a position stored in them is reached. Later, with the help of chess endgame expert [[John Roycroft]], Thompson distributed his first results on CD-ROM. <!-- not sure what this means: The so-called [[Endgame tablebase|tablebases]] are a refinement of these efforts, and overcome some disadvantages of the original approach. – ->
Thompson's style of programming has influenced others, notably in the terseness of his expressions and a preference for clear statements.
In late 2000, Thompson retired from Bell Labs.
He worked at [http://www.entrisphere.com Entrisphere, Inc] as a [[fellow]] until 2006, and now works at [[Google]].-->
<!--== Awards ==
=== Turing Award ===
In [[1983]], Thompson and Ritchie jointly received the [[Turing Award]] <cite>for their development of generic operating systems theory and specifically for the implementation of the UNIX operating system</cite>. His acceptance speech, "[http://cm.bell-labs.com/who/ken/trust.html Reflections on Trusting Trust]" presented the [[Backdoor (computing)|backdoor]] attack now known as the [[Thompson hack]], and is widely considered a seminal [[computer security]] work in its own right.
=== National Medal of Technology ===
[[Fájl:Medal lg.jpeg|thumb|Thompson, Ritchie and [[Bill Clinton|Clinton]]]]
On [[April 27]] [[1999]], Thompson and Ritchie jointly received the [[1998]] [[National Medal of Technology]] from President [[Bill Clinton]]
<cite>for co-inventing the UNIX operating system and the C programming language which together have led to enormous advances in computer hardware, software, and networking systems and stimulated growth of an entire industry, thereby enhancing American leadership in the Information Age
</cite>
<ref name="NationalMedalAnnouncement">''[http://www.bell-labs.com/news/1998/december/9/1.html Ritchie and Thompson [to] Get National Medal of Technology]'' Bell Labs pre-announcement</ref> <ref name="NationalMedalPressRelease">''[http://www.bell-labs.com/news/1999/april/28/1.html Ritchie and Thompson Receive National Medal of Technology from President Clinton]'' Bell Labs press release</ref>
=== Tsutomu Kanai Award ===
In [[1999]], the [[Institute of Electrical and Electronics Engineers]] chose Thompson to receive the first [[Tsutomu Kanai Award]] <cite>for his role in creating the UNIX operating system, which for decades has been a key platform for distributed systems work.</cite> <ref name="Kanai">''[http://www.bell-labs.com/news/1999/march/25/1.html Ken Thompson Receives Kanai Award for Impact of UNIX System]'' Bell Labs press release</ref>
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== Idézetek ==
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