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1973 in science
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==Computer science== * March 1 β [[Xerox PARC]] releases the [[Xerox Alto]], the first computer designed to support an operating system based on a [[graphical user interface]]. * September β The [[TV Typewriter]] appears on the cover of ''[[Radio-Electronics]]''. Designed by [[Don Lancaster]], it is a video terminal that can display two pages of 16 lines of 32 upper case characters on a standard television set. * October β A form of the [[suffix automaton]] is introduced by Peter Weiner.<ref>{{Cite Q|Q29541479|ref={{harvid|Weiner|1973}}}}</ref> * November 21 β The sci-fi movie ''[[Westworld (film)|Westworld]]'' is the first feature film to use [[digital image processing]].
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