Input and Output By Stephen Folmer Comm 165 MWF 9-10 Dr. Cagel By Stephen Folmer Comm 165 MWF 9-10 Dr. Cagel.

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Presentation transcript:

Input and Output By Stephen Folmer Comm 165 MWF 9-10 Dr. Cagel By Stephen Folmer Comm 165 MWF 9-10 Dr. Cagel

What is Input?  Input consists of data and instructions.

What are Input devices?  Input devices translate what people understand into a form that computers can process.  Examples are keyboards, mice, joysticks, scanners.  Input devices translate what people understand into a form that computers can process.  Examples are keyboards, mice, joysticks, scanners.

Keyboards  Traditional  Flexible  Ergonomic  Wireless  PDA  Traditional  Flexible  Ergonomic  Wireless  PDA

Keyboard Features  A computer keyboard combines a typewriter keyboard with a numeric keypad.  Keyboards also have special keys which perform a certain action when combined with other keys  A computer keyboard combines a typewriter keyboard with a numeric keypad.  Keyboards also have special keys which perform a certain action when combined with other keys

Pointing Devices  Mouse  Joystick  Touch Screen  Light Pen  Mouse  Joystick  Touch Screen  Light Pen

Mouse  A mouse controls the pointer that appears on the monitor.  Mechanical Mouse- this is the typical mouse with the ball on the bottom and buttons.  Optical Mouse- This is a mouse that has no moving ball. It emits and senses light to control movement.  Cordless Mouse- this mouse has no cords and all movement is transmitted through infrared light.  A mouse controls the pointer that appears on the monitor.  Mechanical Mouse- this is the typical mouse with the ball on the bottom and buttons.  Optical Mouse- This is a mouse that has no moving ball. It emits and senses light to control movement.  Cordless Mouse- this mouse has no cords and all movement is transmitted through infrared light.

Joystick  The joystick is commonly used for computer video games.  Controls game actions by varying pressure, speed, and direction of the joystick.  The joystick is commonly used for computer video games.  Controls game actions by varying pressure, speed, and direction of the joystick.

Touch Screen  This is a certain type of monitor with a clear plastic outer layer.  Behind the plastic are crisscrossed infrared beams of light.  This is a certain type of monitor with a clear plastic outer layer.  Behind the plastic are crisscrossed infrared beams of light.

Scanning Devices  Flatbed Scanner  Portable Scanner  Bar Code Readers  Character and Mark Recognition Devices  Flatbed Scanner  Portable Scanner  Bar Code Readers  Character and Mark Recognition Devices

Image Capturing Devices  Digital Camera  Digital video Camera  Digital Camera  Digital video Camera

What is Output?  Output is processed data or information. Text, graphics, audio, and video are types of output.  Output devices translate processed information into a form humans can understand.  Output is processed data or information. Text, graphics, audio, and video are types of output.  Output devices translate processed information into a form humans can understand.

Monitors  Cathode-ray tube  Flat-Panel  E-books  Data projectors  Cathode-ray tube  Flat-Panel  E-books  Data projectors

Printers  Ink-jet printers  Laser Printers  Thermal Printers  Dot matrix  Plotters  Photo printers  Portable printers  Ink-jet printers  Laser Printers  Thermal Printers  Dot matrix  Plotters  Photo printers  Portable printers

Combination input and output devices  Fax Machines  Multifunction Devices- all in one devices.  Internet Telephone  Fax Machines  Multifunction Devices- all in one devices.  Internet Telephone