chapter 5 input 6.other pointing devices课件

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1、CHAPTER5InputOtherPointingDevicesPointingDevicesPointingdevice:aninputdevicethatallowsyoutocontrolapointeronthescreenTheyaregenerallyfastandeasytouse,butrequirehand-eyecoordinationTypesofPointingDevicesMouseTrackballTouchpad/TrackpadPointingStickJoyStick/WheelLightP

2、enTouchScreenStylusTrackballStationarypointingdevicewithaballontop,(upsidedownmouse)TomovethepointeryourotatetheballRequiresfrequentcleaningbecauseofoilanddustBenefit:youdon’thavetomovetheentiredevice,soittakesuplessspaceTouchpad/TrackpadSmall,flat,rectangulardevice

3、thatissensitivetopressureandmotionYoumovethepointerbyslidingyourfingeraroundYoutapthepadtoinitiatea“click”MostoftenfoundonnotebookcomputersPointingStickPressuresensitivedeviceshapedlikeapencileraserthatispositionedbetweenkeysonthekeyboard.FirstdevelopedbyIBMfortheir

4、notebookcomputersJoystick&WheelThesedevicesareusedforgamesoftwareorflightanddrivingsoftware.Thenamejoystickcomesfromearlyhistoryinaircraftcontrol.Joystick:averticallevermountedonabase.Itiseasilymovedinmultipledirections.Wheel:asteering-wheeltypedeviceusedinautosimul

5、ationgamesLightPenAhandhelddevicethatcontainsalightsourceorcandetectlight.Somerequirespeciallydesignedmonitors.Oneproblemishandfatigue.TouchScreenAtouchsensitivedisplayyouinteractwithbytouchingareasofthescreenwithyourfingersExamples:Kiosks(Wal-Martautomotivedepartme

6、nt)andATMmachinesStylusLookslikeaballpointpen.Itusespressuretowriteanddrawlines.Originalnameswere:“electronicpen”or“e-pen”OtherInteractionDevicesGraphicTabletTabletPCVoiceRecognitionHandwritingRecognitionGraphicTabletItisaflat,rectangularelectronicplasticboardAlsoca

7、lleda“digitizer”or“digitizingtablet”UsedalongwithastylusOneuse:architects,mapmakers,artists,anddesignerscreatedrawingsandsketchesusingitTabletPCWeighsaround3lbs.UsesadigitalpenMicrosoftversionusesWindowsXPProfessionalIthashandwritingandvoicerecognitioncapabilitiesTa

8、kenotesandsavethemConverthandwrittendocumentsintotypeddocumentsVoiceRecognitionVoicerecognition:acomputer’scapabilityofdistinguishingspoke