chapter_7_INPUT_AND_OUTPUT

7INPUTANDOUTPUT7-2CompetenciesDefineinputDescribekeyboardentry,pointingdevices,&scanningdevicesDiscussimagecapturingdevices,digitizingdevices,&audioinputdevices7-3Competenciescont.DefineoutputDescribemonitors,printers,andaudiooutputdevicesDiscusscombinationinput&outputdevices7-4WhatisInput?AnydataorinstructionsusedbyacomputerInputdevicesHardwareKeyboardsMiceScannersOtherdevicesTranslatesdataintoaformthatthesystemunitcanprocess7-5KeyboardEntryKeyboardsTraditionalkeyboardsFlexiblekeyboardsErgonomickeyboardsWirelesskeyboardsPDAkeyboardsFeaturesTypewriterkeyboardwithnumericpadSpecialpurposekeysToggleandcombinationkeys7-6TraditionalKeyboard7-7PointingDevicesMouseMechanicalOpticalCordlessorwirelessJoystickTouchScreenLightPen7-8ScanningDevicesOpticalscannersFlatbedPortableBarcodereadersHandheldwandreadersorplatformscannersContainphotoelectriccellsthatreadbarcodes7-9ScanningDevicesCharacterandmarkrecognitiondevicesScannersthatrecognizespecialcharacters&marksMagneticinkcharacterrecognition(MICR)Optical-characterrecognition(OCR)Optical-markrecognition(OMR)7-10ImageCapturingDevicesDigitalcameraImagesrecordeddigitallyonadiskImagescanbedownloadedtoacomputerDigitalvideocameraRecordsmotiondigitallyCantakestillimagesaswellWebCamsSpecializeddigitalvideocamerasBroadcastimagesovertheInternet7-11DigitizingDevicesGraphicsTabletsDigitalNotepads7-12AudioInputDevicesVoiceVoicerecognitionsystemsDiscrete-speechrecognitionsystemsContinuous-speechrecognitionsystemMusicMusicalInterfaceDigitalInterface(MIDI)7-13WhatisOutput?ProcesseddataorinformationTypesofoutputTextGraphicsAudio&videoOutputdevicesMonitorsPrinters7-14MonitorsKnownasscreensordisplayscreensOutputreferredtoassoftcopyFeaturesResolutionDotpitchRefreshrateSize7-15MoreonMonitorsCathode-raytubeorCRTsFlat-panelLiquidcrystaldisplay(LCD)PortableandthinnerthanCRTsOthermonitorsE-booksDataprojectorsHigh-definitiontelevision(HDTV)7-16PrintersTranslatesinformationthathasbeenprocessedbythesystemunitOutputreferredtoashardcopyFeaturesResolutionColorcapabilitySpeedMemory7-17PrintersInk-jetprinterLaserprinterPersonallaserprintersSharedlaserprintersThermalprinterOtherprintersDot-matrixPlottersPhotoprinters7-18AudioOutputDevicesTranslatesaudioinformationintosoundsthatpeoplecanunderstandCommondevicesSpeakersHeadphones7-19CombinationInputandOutputDevicesFaxmachinesMultifunctiondevicesInternettelephonesTelephonyVoice-overIP(VoIP)Terminals7-20TerminalsAninputandoutputdeviceConnectstoamainframeorserverTypesofterminalsDumbterminalIntelligentterminalNetworkterminalInternetterminal7-21ALooktotheFutureNeuralSignalsInc.BrainmachineinterfaceAllowshumanstocontrolmachineswiththeirthoughtsIndividualsincapableofcommunicationPhysicallyimmobilepeople7-22KeyTermsactivematrixmonitor(190)audioinputdevice(185)audio-outputdevice(193)barcode(183)barcodereader(183)barcodescanner(183)cathoderaytubemonitor(CRT)(189)characterrecognitiondevice(183)clarity(189)colorcapability(printer)(191)combinationdevice(193)combinationkey(175)continuous-speechrecognitionsystem(188)7-23KeyTermscordlessmouse(180)dataprojector(190)digitalcamera(184)digitalnotepad(185)digitalvideocamera(184)digitizingdevice(185)discrete-speechrecognitionsystem(188)displayscreen(189)dot-matrixprinter(192)dotpitch(189)dots-per-inch(dpi)(191)download(184)dual-scanmonitor(190)dumbterminal(195)e-book(190)e-bookreader(190)7-24KeyTermsfacsimile(fax)machine(194)flat-panelmonitor(190)Flatbedscanner(183)graphicstablet(185)hardcopy(191)Headphones(193)high-definitiontelevision(HDTV)(190)hostcomputer(195)imagecapturingdevice(184)ink-jetprinter(191)inputdevice(178)input(178)intelligentterminal(195)Internettelephone(194)Internettelephony(194)7-25KeyTermsInternetterminal(195)IPTelephony(194)joystick(181)keyboard(178)laserprinter(192)lightpen(182)liquidcrystaldisplay(LCD)(190)Magnetic-inkcharacterrecognition(MICR)(183)markrecognitiondevice(183)marksensing(183)mechanicalmouse(180)memory(printer)(191)MusicalInterfaceDigitalInterfaceMIDI(188)7-26KeyTermsMIDIdevice(188)monitor(189)mouse(180)mousepad(180)mousepointer(180)multifunctiondevice(MFD)(194)networkcomputer(195)networkterminal(195)numerickeypad(178)opticalcharacterrecognition(OCR)(183)Optical-markrecognition(OMR)(183)opticalmouse(180)opticalscanner(182)output(188)outputdevice(188)7-27KeyTermspassive-matrixmonitor(190)PC/TV(190)personallaserprinter(192)photoprinter(192)pixel(pictureelement)(189)platformscanner(183)plotter(192)pointing(180)pointingdevice(180)pointingstick(180)portablescanner(183)printer(191)reader/sorter(183)refreshrate(189)resolution(monitor)(189)7-28KeyTermsresolution(printer)(191)rollerball(180)scanner(182)scanningdevice(182)screen(189)server(195)sharedlaserprinter(192)size(viewablesize)(189)softcopy(189)speakers(193)speed(printer)(191)telephony(194)terminal(195)thermalprinter(192)thinclient(195)thinfilmresistormonitor(TFT)(190)togglekey(179)7-29KeyTermstouchpad(180)touchscreen(181)touchsurface(180)trackball(180)UniversalProductCode(UPC)(183)voicerecognitionsystem(185)voice-overIP(VoIP)(194)wandreader