InputsandOutput devices...精品文档 Keyboard Thecommonestwaytoenterdataintoacomputer.Eachkeyissimplyaswitch,whichwhenpressed,resultsinadigitalcodebeingsenttothecomputer.精品文档 Mouse Themovementofthemouseoveraflatsurfaceismirroredbyapointeronthemonitorscreen.Underthemouseisaballwhichrollsandturnstwoshafts,onefor...
Input and Output devices in a Computer Input Devices An input device is a hardware or peripheral device used to send data to a computer. An input device allows users to communicate and feed instructions and data to computers for processing, display, storage and/or transmission. Two main types ...
1、单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Chapter 5,Computer,Section 3 Input and Output Devices,Text,New Words and Expressions,Exercises,End,Transition of Sentence Pattern,Section 3,Input and Output Devices,Expansion Slots,Card,And Ports,Within a comput...
Input Devices An input device is any hardware component that allows you to enter data and instructions onto a computer. Six Widely used input devices are the keyboard, mouse, microphone, scanner, digital camera and PC video camera. Output Devices An output device is any hardware component that ...
•Rotationofcylindersinmouse•Rolloftrackball•Difficulttoobtainabsoluteposition•Cangetvariablesensitivity LOGICALDEVICES •ConsidertheCandC++code •C++:cin>>x;•C:scanf(“%d”,&x);•Whatistheinputdevice?•Can’ttellfromthecode•Couldbekeyboard,file,outputfromanotherprogram ...
outputdevices 5-2 InputDevices Anyhardwarecomponentthatallowstheusertoenterdata,programs,commands,anduserresponsetoacomputer 5-3 TraditionalInputDevices Keyboards Point-and-DrawDevices 5-4 Keyboards–themostcommonlyusedinputdevice •Keysforlettersof alphabet,numbers •12Functionkeys •ArrowKeys •...
outputessentialskeysplotternotepadscomputing computingESSENTIALS 17777InputandoutputcomputingESSENTIALS2CompetenciesInputdevicesDigitizingOutputdevicesMultifunctionaldevicesTelephonyTerminalscomputingESSENTIALS3Input Dataorinstructions Directlyfromuser Fromothersources Inputdevice HardwaretoprovideinputtocomputercomputingESSENTIALS4Input...
status and data between the I/O module and external device (Peripheral device). We classify External Devices into 3 categories • Human readable (comms with computer user) —Screen, printer, keyboard • Machine readable (comms with equipment) —Monitoring and control. Is a magnetic disk…?
系统标签: inputoutput carleton chapter cpu dept oct 2007Oct18SYSC2001*-Dept.SystemsandComputerEngineering,CarletonUniversityFall2007.SYSC2001-Ch7.ppt1Chapter7Input/Output7.1ExternalDevices7.2I/OModules7.3ProgrammedI/O7.4Interrupt-DrivenI/O7.5DirectMemoryAccess7.6I/OChannelsandProcessors7.7FireWire2007Oct18...
07_Input Output WilliamStallingsComputerOrganizationandArchitecture7thEditionChapter7Input/Output Input/OutputProblems•Widevarietyofperipherals —Deliveringdifferentamountsofdata—Atdifferentspeeds—Indifferentformats •AllslowerthanCPUandRAM•NeedI/Omodules Input/OutputModule•InterfacetoCPUandMemory•Interface...