IntroductiontoComputing课件
日期：2010-08-26 08:04
andwhatfor?Whatdoyouuseacomputerfortoday?Whataresomeofmostimportantusesofcomputers，otherthanyourown?Whatabilitiesdoyouneedinacomputer?Whatarethemajorchangesyou’veobservedintheuseofcomputers?Whatarethemajorchangesyou’veobservedincomputersthemselves?Whatarethemajorchangesyouexpecttoseeoverthenextfewyears?Whatarethemajorchangesyouwouldmostliketoseeoverthenextfewyears?WhenWastheComputerInvented?WhenWastheTransistorInvented?WhenwastheMicroprocessorInvented?WhenWastheInternetInvented?WhenWastheWorldWideWebInvented?WhatistheDifferencebetweentheInternetandtheWWW?ABriefHistoryofComputerTimeHarvardMK-IandColossus:1943ColossusdesignedtocrackGermancodingsystemVacuumvalvesas“transistors”andpunchedcardsforstorageENIAC:completed1946(firstgeneration)Weighed30tonnes;contained18，000electronicvalves;consumed25KWofpower;coulddo100，ComputersandComputingCOS111 ComputersandComputingWhendidyoufirststarttouseacomputer，000calcs/secTransistor:1947(secondgeneration)Integratedcircuit(thirdgenerat，
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