Computer Confluence 6/eSlide 2Computer Confluence 6/e Chapter 3 ObjectivesComputer Confluence 6/e Chapter 3 Input: From Person to ProcessorSlide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14© 2005 Prentice-Hall, Inc. Slide 1Computer Confluence 6/e© 2005 Prentice-Hall, Inc. Slide 2Computer Confluence 6/eChapter 3Hardware Basics: Peripherals© 2005 Prentice-Hall, Inc. Slide 3Computer Confluence 6/e Chapter 3ObjectivesInput devices and their roles in getting different types of information into the computerOutput devices and the ways they make computers more useful The functionality of different types of storage devices The ways the components of a computer system fit together© 2005 Prentice-Hall, Inc. Slide 4Computer Confluence 6/e Chapter 3Input: From Person to ProcessorKeyboardThe most familiar input deviceUsed to enter letters, numbers and special characters© 2005 Prentice-Hall, Inc. Slide 5Computer Confluence 6/e Chapter 3Input: From Person to ProcessorStandard keyboard Ergonomic keyboardsTo address possible medical problems Wireless keyboardFolding keyboards Used with palm-sized computersOne-handed keyboards Keyboards printed on membranes© 2005 Prentice-Hall, Inc. Slide 6Computer Confluence 6/e Chapter 3Input: From Person to ProcessorPointing Devices Mouse Touchpad Pointing stick Trackball Joystick Graphics tablet Touch screenStylus© 2005 Prentice-Hall, Inc. Slide 7Computer Confluence 6/e Chapter 3Input: From Person to ProcessorReading ToolsReads marks representing codes specifically designed for computer input© 2005 Prentice-Hall, Inc. Slide 8Computer Confluence 6/e Chapter 3Input: From Person to ProcessorOptical-mark readers Magnetic-ink character readers Bar-code readers Pen scanners Tablet PC Smart whiteboard© 2005 Prentice-Hall, Inc. Slide 9Computer Confluence 6/e Chapter 3Input: From Person to ProcessorDigitizing the Real WorldScanners capture and digitize printed imagesFlatbed Slide Drum Sheet-fed© 2005 Prentice-Hall, Inc. Slide 10Computer Confluence 6/e Chapter 3Input: From Person to ProcessorDigital cameraSnapshots captured as digital imagesDigital images stored as bit patterns on disks or other digital storage media© 2005 Prentice-Hall, Inc. Slide 11Computer Confluence 6/e Chapter 3Input: From Person to ProcessorVideo digitizerCapture input from a:Video cameraVideo cassette recorder or televisionConvert it to a digital signalStored in memory and displayed on computer screens VideoconferencingPeople in diverse locations can see and hear each other Used to conduct long-distance meetingsVideo images transmitted through networks© 2005 Prentice-Hall, Inc. Slide 12Computer Confluence 6/e Chapter 3Input: From Person to ProcessorAudio digitizers Digitize sounds from Microphones Other input devicesDigital signals can be Stored Further processed with specialized software© 2005 Prentice-Hall, Inc. Slide 13Computer Confluence 6/e Chapter 3Input: From Person to ProcessorSpeech recognition software Converts voice data into words that can be edited and printed© 2005 Prentice-Hall, Inc. Slide 14Computer Confluence 6/e Chapter 3Input: From Person to ProcessorSensors Designed to monitor physical conditions Temperature, humidity, pressure Provide data used in: Robotics Environmental climate control Weather forecasting Medical monitoring Biofeedback Scientific
View Full Document