CHAPTER 1 Introduction to Computers 3. The Components of a Computer.ppt

1、chapter 1指导计算机、计算机组件、输入设备、 aninputdeviceisanyhardwarecomponentthatallowsyoutoenterdataandinstructionsontoacomputer.sixwidelyusedinputdevicesarethekeyy d 扫描器、数字摄像机和PC视频摄像机.输出设备、通知硬件组件配置信息ormorepe a监视器和speakers . 输入和输出设备， dataentrytheprocessbywhichhuman -可读取的bledataisconvertedintoamachine -可读取的form.da

2、tainputtheprocessoftransferring dataintot automationcapturingandeditingdatawherethedataisoriginallycreatedandinaformthatcanbedirrection y输入到a计算机、输入设备、 pcinputdevicesvoicerecognitiondevicesdigitalcomputercamerasterminalsscanningdevicesopticaldatareadersmagneticinkcharacterrecog 销售点(pos )设备、自动电子机器(ATM

3、 )笔记本电脑兼容性计算机computer 输出设备、显示监视器(LCDs )打印机sandplotterscomputeroutputmicrofilm (com )、系统单元、 asystemunitisthepartofacomputerthathousestheprimarydevicesthatperformoperationsandproduceresultsforcomplexcalculations.itit es ram and other组件，aswellasthecaseinwhichthesedevicesarehoused.thisunitisalsoknownasa

4、chassisoratowerinlaymansterms。 anditperformsthemajorityofthefunctionsthatacomputerisrequiredtodo .存储设备。 astoragedeviceisadeviceforrecording (storing )信息(数据).recordingcanbedoneusingvirtuallyanyformofenergy spanningfromman toelectromagneticenergymodulatingmagnetictapeandopticaldiscs .闪存盘、压缩盘、通信设备， aco

5、mmunicationdeviceisahardwaredevicecapableoftransmittinganalogordigitalsignaloverthetelephone，超通信无线。 orwirelessly.thebestexampleofacommunicationdeviceisacomputermodem。 whichiscapableofsendingandreceivingasignaltoallowcomputerstotalktoothercomputersoverthetelephone.otherexamplesofcommunicattion terfacecard (网卡)、wi-fi设备、andanaccesspoint.belowisapictureofsomeofthediff