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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...
54: ...liest computers were purely mechanical. In the [[1930s]] electro-mechanical components ([[relay]]s) we...
76: ... [[Vannevar Bush]]'s [[Differential analyser]] [[1932]]), and General-Purpose devices of the type used...
79: ...cution, and the reliability of the machine. In [[1934]] [[Alan Turing]] proved that, given the right p... - Computer mouse (29399 bytes)
15: ... System"''. At the time, Engelbart intended that users would ''continuously'' hold the mouse in one han...
19: ...rsonal computer]]s throughout the [[1980s]] and [[1990s]]. The Xerox PARC group also settled on the mo...
47: ...een one and three buttons, although in the late [[1990s]] some mice sprouted five or more.
54: ...ons, ranging from five to more. Depending on the user's preferences, the extra buttons might allow forw...
64: ...actile feedback, gives a better response from the user. - Global warming (53726 bytes)
5:
26: ...n observed may vary according to the focus of the user of the term: sometime since the [[Industrial Revo...
42: ...re comparable to those of the 20th century before 1990. "Moberg's reconstruction will help to put the r...
108:
140: ...though satellite data show a rate of 3 mm/y since 1992. Some [[Pacific Ocean]] island nations, such as ...
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