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INPUT AND OUTPUT By: Chow Mai Vang Dr. Cagle Spring 2006 COMM 165 By: Chow Mai Vang Dr. Cagle Spring 2006 COMM 165
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INPUT What is Input? According to O’Leary and O’Leary, input is define as input devices that translate what people understand into forms that computers can process. Input is composed of date and instructions. According to O’Leary and O’Leary, input is define as input devices that translate what people understand into forms that computers can process. Input is composed of date and instructions.
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INPUT DEVICES Again, input devices are devices that are able to translate what people understand into a form that computers can process. Examples would be keyboards, mouse, joysticks, and scanners. Again, input devices are devices that are able to translate what people understand into a form that computers can process. Examples would be keyboards, mouse, joysticks, and scanners.
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KEYBOARDS Traditional Keyboards - Full-sized, rigid, rectangular keyboard that include function, navigational, and numeric keys Flexible Keyboards - Fold or roll up for each packing or storage Ergonomic Keyboards - Similar to traditional keyboards. The keyboards arrangement, however is not rectangular and a palm rest is provided. Wireless Keyboards PDA O’Leary & O’Leary Copyright 2006 Traditional Keyboards - Full-sized, rigid, rectangular keyboard that include function, navigational, and numeric keys Flexible Keyboards - Fold or roll up for each packing or storage Ergonomic Keyboards - Similar to traditional keyboards. The keyboards arrangement, however is not rectangular and a palm rest is provided. Wireless Keyboards PDA O’Leary & O’Leary Copyright 2006
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POINTING DEVICES Pointing Devices, according to O’Leary & O’Leary, provides a comfortable interface with the system unit by accepting pointing gestures and converting them into machine- readable inputs. Examples of pointing devices include but are not limited to: Mouse, Joystick, Touch Screen, and Light Pen Pointing Devices, according to O’Leary & O’Leary, provides a comfortable interface with the system unit by accepting pointing gestures and converting them into machine- readable inputs. Examples of pointing devices include but are not limited to: Mouse, Joystick, Touch Screen, and Light Pen
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MOUSE The mouse of a computer controls the pointer that appears on the monitor. Examples: Mechanical Mouse, Optical Mouse, Cordless Mouse. Mechanical Mouse - the basic mouse with a ball on the bottom and buttons. Optical Mouse - A mouse that has no moving ball, instead it emits and senses light to control movements. Cordless Mouse - a mouse that has no cords and all movement is transmitted through infrared light. The mouse of a computer controls the pointer that appears on the monitor. Examples: Mechanical Mouse, Optical Mouse, Cordless Mouse. Mechanical Mouse - the basic mouse with a ball on the bottom and buttons. Optical Mouse - A mouse that has no moving ball, instead it emits and senses light to control movements. Cordless Mouse - a mouse that has no cords and all movement is transmitted through infrared light.
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JOYSTICK Joysticks are normally used for computer games. It controls the game’s movements by pressure, speed, and direction of the joystick. Joysticks are normally used for computer games. It controls the game’s movements by pressure, speed, and direction of the joystick.
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TOUCH SCREEN This type of monitor has a clear plastic outer layer, and behind that outer layer are infrared beams of light.
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SCANNING DEVICES Flatbed Scanner - like a copy machine Portable Canner - a hand held device that slides across images Bar Code Readers - a grocery scanner Character and Mark Recognition Devices - Scanners that are able to recognizes special characters and marks Examples: MICR, OMR, or OCR Flatbed Scanner - like a copy machine Portable Canner - a hand held device that slides across images Bar Code Readers - a grocery scanner Character and Mark Recognition Devices - Scanners that are able to recognizes special characters and marks Examples: MICR, OMR, or OCR
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IMAGE CAPTURING DEVICES Digital Cameras Digital Video Cameras Digital Cameras Digital Video Cameras
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OUTPUT Output is the processed of data or information such as text, graphics, audio, and videos.
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WHAT IS OUPUT? Output devices are able to translate and processed information into a form that humans can understand. Examples: Monitors, Printers, Fax Machines, multifunction devices, and internet telephone. Output devices are able to translate and processed information into a form that humans can understand. Examples: Monitors, Printers, Fax Machines, multifunction devices, and internet telephone.
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MOINTORS Types of monitors: Cathode-ray tube Flat-Panel E-books Date projectors Types of monitors: Cathode-ray tube Flat-Panel E-books Date projectors
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PRINTERS Examples: Ink-jet printer Laser Printer Thermal Printers Dot Matrix Plotters Photo Printers Portable Printers Examples: Ink-jet printer Laser Printer Thermal Printers Dot Matrix Plotters Photo Printers Portable Printers
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