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1、本科生毕业设计（论文）专业外文翻译原文：PCandsinglechipmicrocomputerserialcommunicationdesign译文：关于PC机与单片机串行通信设计的实现指导教师：宋东亚职称：讲师学生姓名：李晓旭学号：1002120107专业：电气工程及其自动化院（系）：机电工程学院2014年3月20日1010PCandsinglechipmicrocomputerserialcommunicationdesignPCistheabbreviationofthePersonalComputer,wh
2、ichcanrunindependently,performspecificfunctionsofthePersonalComputer.Personalcomputerdoesnotneedtoshareothercomputerresourcessuchasprocessing,disksandprintercanworkindependently.1.1.PCdevelopmentbriefhistoryAccordingtothelogicelementprocesschange,canbedividedin
3、tofourstages:Øfirstgeneration:1946-1958isthevacuumtubecomputer.Itscharacteristicisthatthebigvolume,powerconsumption,moreslowly,butlaidthefoundationofcomputertechnology.Øsecondgeneration:1958-1964isthetransistorcomputer.Itscharacteristicisthatthevolumereduction,
4、reducepowerconsumption,speed,costreduction;Øthirdgeneration:1964-1971istheintegratedcircuitcomputer,thanonthecharacteristicsofthesecondgenerationofthethirdgenerationhasalargerincrease;Øfourthgeneration:massofverylargescaleintegratedcircuitcomputersince1971,itfr
5、omlargetotinydevelopment,costperformanceisgreatlyimproved;ØThefifthgenerationcomputerwilldeveloptois.1.2.ThePChardwareprofileHardwareisrunningsoftwareplatform,softwarecontrolhardwareworktocompletethescheduledtasks.Firstofall,letusunderstandthecomputerhardware.1
6、.2.1.Centralprocessingunit(CPU)TheCPUistheabbreviationofcentralprocessingunit(CPU),itisthecorecomputercomponents.CPUchipmainlycontainarithmeticunitandcontroller.ØunitArithmeticunitisusedfordataarithmeticoperation(addition,subtraction,multiplication,division,etc
7、.)andlogicoperations(comparison,shift,Booleancalculation,etc.)ofthedevice.Datafrommemoryintheunitoperation,operationresultandsenttomemory,theseoperationsarecarriedoutunderthecontrolofthecontroller.ØcontrollerControlleristhecommandcenterofthecomputer,isusedtocon
8、trol,accusedtheentirecomputersystemautomatically,continuouslyrunningandcoordinatedworkbetweentheparts.10Singlechipmicrocomputerhereinafterreferredtoassinglechipmicrocomputer
