计算机专业英语PPT课件Inthischapter,weexaminetheorganizationofbasiccomputersystem.Asimplecomputerhasthreeprimarysubsystems.Thecentralprocessingunit,orCPU,performsmanyoperationsandcontrolsthecomputer.Amicroprocessorusuallyservesasthecomputer’sCPU.Thememorysubsystemisusedtostoreprogramsbeingexecut