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- Computer (32773 bytes)
18: ... the problem, the result must be displayed to the user as [[output]] through output devices like light b...
20: Novice users, especially children, often have difficulty unde...
29: ... second per $1000) every 18 to 24 months since [[1900]]. [[Gordon E. Moore|Gordon E. Moore]], co-found...
56: ...constricted channels, and between [[1903]] and [[1909]] [[Percy E. Ludgate]] developed a design for a ...
103: ...ied according to the way they are operated by the users. Two main types exist: [[batch processing]] and ... - Computer mouse (29399 bytes)
11: ...http://www.freepatentsonline.com/3835464.htm 3835464]. Ball and two rollers with spring by ''Opocentsk...
15: ... System"''. At the time, Engelbart intended that users would ''continuously'' hold the mouse in one han...
19: ...onal computer]]s throughout the [[1980s]] and [[1990s]]. The Xerox PARC group also settled on the mod...
26: ...ray of 18*18 [[pixels]], and each pixel can sense 64 different levels of gray.
47: ...n one and three buttons, although in the late [[1990s]] some mice sprouted five or more. - Global warming (53726 bytes)
5:
16: ... [http://www.royalsoc.ac.uk/displaypagedoc.asp?id=13057].
26: ...n observed may vary according to the focus of the user of the term: sometime since the [[Industrial Revo...
42: ... comparable to those of the 20th century before 1990. "Moberg's reconstruction will help to put the re...
54: ... the late 19th century the Swedish chemist and [[1903]] [[Nobel Prize in Chemistry|Nobel Laureate]] [[...
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