问题标题：
以《the____changesourlife>为题写一篇80词左右的短文,要写清该物品的用途,发明历史及发展
问题描述：
以《the____changesourlife>为题写一篇80词左右的短文,要写清该物品的用途,发明历史及发展
曹学年回答：
ThecomputerchangesourlifeTherearemanyinventionsintheworld,butmyfavoriteinventionisthecomputer.Asastudentthecomputerhelpsmealot.Withthecomputer,Icanfindlotsofinformation...
黄春鹏回答：
能补充些电脑的发展历史吗？
曹学年回答：
TheoldestcalculatingtoolisabacusthatwasinventedbyChineseseveralthousandyearsago.Sincethenhumanbeingshadtriedtomakeamachinetocalculateformanyyears.However,therehadbeennomachinewhichcanbecalled"computer"till1946.InthatyeartwoAmericansinventedthefirstcomputerintheworld.Thevolumnofthemachinewassolargethatittookupawholeroom,anditsspeedwasverylow.WiththerapiddevelopmentofIT,nowadayscomputersaremuchsmallerandfaster,andtheyhavebecomeoneofessentialtoolsforeverybody.
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