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putersusedtobelarge,expensivemachinesthatwereverydifficulttouse.Butscientistsandtechnicianshavebeenmakingthemsmallerandcheaperwhileatthesametimetheyhavebeenmadeeasiertouse.Asaresult,theirpopularityhasbeenincreasingasmorepeoplehavebeenbuyingcomputersfortheirhomesandbusinesses.
Computershavebeendesignedtostoreinformationandcomputecomplexproblems.Somehavevoicesthatspeakwiththeoperators.Storesusecomputerstokeeprecordsoftheirinventoriesandtosendbillstotheircustomers.Officesusecomputerstotypeletters,recordbusinessandcommunicatewithotheroffices.Peoplehavebeenusingcomputersintheirhomestokeeptrackofexpensesandturnappliancesonandoff.
Oneimportantnewuseforcomputersisforentertainment.Manynewgameshavebeendesignedtobeplayedonthecomputers.Peopleofallageshavebeenplayingthesegames.TheyhavebeengoingtoArcadeswherethecomputergamescanbeplayedforasmallcost.Peoplealsohavebeenbuyinghomecomputerstoplaycomputergamesathome.Theyhavebecomeverypopularindeed.
以上出自中级美国英语(可能略有删节)。没有提到计算机的缺点，请阁下自己编点儿�
