Editing 2001 in science (section)

==Computer science==
* January 9 – [[Apple Inc.]] releases the [[iTunes]] [[Media player (software)|media player]] (modified from [[SoundJam MP]]).
* January 15 – [[Wikipedia]] launches on the internet.
* May – [[Tim Berners-Lee]] and colleagues name the [[Semantic Web]].<ref>{{cite journal|last=Berners-Lee|first=Tim|author2=Hendler, James|author3=Lassila, Ora|title=The Semantic Web|journal=[[Scientific American]]|date=May 17, 2001|volume=284|issue=5|pages=34–43|doi=10.1038/scientificamerican0501-34|bibcode=2001SciAm.284e..34B |url=http://www.sciam.com/article.cfm?id=the-semantic-web&print=true|accessdate=2012-08-23|archive-url=https://web.archive.org/web/20081114135540/http://www.sciam.com/article.cfm?id=the-semantic-web&print=true|archive-date=November 14, 2008|url-status=dead|url-access=subscription}}</ref>
* August 24 – [[Windows XP]] [[personal computer]] [[operating system]] released by [[Microsoft]]; it is available for retail sale on October 25.
* October 23 – [[Apple Inc.]] unveil the [[iPod classic#First generation|first generation]] [[iPod]] [[portable media player]].
* December 1&ndash;2 – The [[Budapest Open Access Initiative]], a public statement of principles promoting [[open access]] to research literature, is launched at a conference convened in [[Budapest]] by the [[Open Society Institute]].
* December – The [[C Sharp (programming language)|C# programming language]] specification is released.
* In [[quantum computers|quantum computing]], the first working 7-qubit NMR computer is demonstrated at [[IBM]]'s Almaden Research Center, demonstrating [[Shor's algorithm]].
* [[Chatterbot]] [[Eugene Goostman]] is developed.
* The [[Walkman Circ]] is released.