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chapter 5 input 12. chapter summary课件

chapter 5 input 12. chapter summary课件

ID：36249704

大小：4.60 MB

页数：21页

时间：2019-05-07

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1、CHAPTER5InputChapterSummaryWhatIsInput?Whatisinput?InputdeviceisanyhardwarecomponentthatallowsuserstoenterdataandinstructionsDataorinstructionsenteredintomemoryofcomputerWhatIsInput?Whatarethetwotypesofinput?Unprocessedtext, numbers,images, audio,andvideoInstructionsProgramsCommandsUserresponsesDa

2、taTheKeyboardHowisthekeyboarddivided?TypingareaNumerickeypadFunctionkeys,special keysthatissue commandsTheKeyboardWhatistheinsertionpoint?BlinkingverticalbarthatindicateswherenextcharacteryoutypewilldisplayPointerchanges locationandshape asyoumovemouse orotherpointing deviceTheKeyboardWhatisacordl

3、esskeyboard?CommunicatewithareceiverattachedtoaportonthesystemunitPointingDevicesWhatisamouse?PointingdevicethatfitsunderpalmofhandPointingdevicecontrolsmovementofpointer,alsocalledmousepointerMechanicalmouse hasrubberormetal ballonundersidemousebuttonswheelbuttonmousepadballPointingDevicesWhatisa

4、nopticalmouse?NomovingmechanicalpartsinsideSenseslighttodetectmouse’smovementMoreprecisethanmechanicalmouseConnectsusinga cable,orwirelessOtherPointingDevicesWhatisatrackball?StationarypointingdevicewithaballonitstoporsideTomovepointer,rotateballwiththumb,fingers,orpalmofhandOtherPointingDevicesWh

5、atareatouchpadandapointingstick?Touchpadissmall,flat,rectangularpointingdevicesensitivetopressureandmotionPointingstickispointingdeviceshapedlikepencileraserpositionedbetweenkeysonkeyboardOtherPointingDevicesWhatareajoystickandawheel?Joystickisvertical levermounted onabaseWheelis steering-wheel-ty

6、pe inputdevicePedalsimulates carbrakesandacceleratorOtherPointingDevicesWhatisalightpen?HandheldinputdevicethatcandetectlightPresslightpenagainstscreensurfaceandthenpressbuttononpenOtherPointingDevicesWhatisatouchscreen?TouchareasofscreenwithfingerOftenusedwithkiosksKeyboardandPointingDevicesWhati

7、sastylusandadigitalpen?Lookslikeaballpointpen,butusespressuretowritetextanddrawlinesUsedwithgraphicstablets,flatelectronicboardsVoiceInputHowdoesvoicerecognitionwork?Step2.Ananalog-to-digitalconverter(ADC)transla

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