Thefollowingparagraphisincomplete.Choosethebestsentencetomakeitcomplete.选择合适的句子，完成段落。 Therearealotoftermsusedtodescribecomputers.Mostofthesewordsimplythesize,expecteduseorcapabilityofthecomputer.___________________________________.Themostfamiliartypeofmicroprocessoristhepersonalcomputer(PC).Itisdesignedforgeneralusebyasingleperson.Anotherpurposeforusingamicroprocessorisasaworkstation.Thecomputersusedforthispurposehaveamorepowerfulprocessor,additionalmemoryandenhancedcapabilitiesforperformingaspecialgroupoftask,suchas3DGraphicsorgamedevelopment.Acomputercanalsobeusedasaserver.Serversusuallyhavepowerfulprocessors,lotsofmemoryandlargeharddrives.Afourthone,amainframeistheheartofanetworkofcomputersorterminalswhichallowshundredsofpeopletoworkatthesametimeonthesamedata.