Editing 1990 in science (section)

==Computer science==
* February – [[Adobe Photoshop]] 1.0 [[graphics software]], devised by [[Thomas Knoll]], is released.<ref>{{cite web|url=http://siliconuser.com/?q=node/10|archive-url=https://archive.today/20070611134528/http://siliconuser.com/?q=node/10|url-status=dead|archive-date=2007-06-11|title=How Adobe's Photoshop Was Born|access-date=2007-06-15|last=Hormby|first=John|date=2007-06-05|work=Story Photography}}</ref>
* May 22 - [[Windows 3.0]] is shipped by [[Microsoft]]
* November 12 – [[Tim Berners-Lee]] publishes a more formal proposal for the [[World Wide Web]].<ref>{{cite web|url=http://www.w3.org/Proposal |first1=T. |last1=Berners-Lee |first2=R. |last2=Cailliau |title=WorldWideWeb: Proposal for a HyperText Project |date=12 November 1990 |access-date=2011-11-29 |url-status=dead |archive-url=https://web.archive.org/web/20121219024023/http://www.w3.org/Proposal |archive-date=2012-12-19 }}</ref>
* November 13 – The first known [[World Wide Web|web]] page is written.<ref>{{cite web|title=Links and Anchors|url=http://www.w3.org/History/19921103-hypertext/hypertext/WWW/Link.html|access-date=2011-11-29}}</ref>
* Approx. November 22 – [[Satoshi Tajiri]] begins creating the first [[Pokémon]] game.<ref>{{cite magazine|url=http://www.cnn.com/ASIANOW/time/magazine/99/1122/pokemon6.fullinterview1.html|title=The Ultimate Game Freak|date=1999-11-22|magazine=[[Time (magazine)|Time]]|location=Asia|volume=154|issue=20|first=Tim|last=Larimer|access-date=2015-02-02}}</ref>