Input+and+Output+devices

Back  Input and Output Devices An input device It is used to enter data into a computer. Here are some examples of input devices:

Mouse The mouse and keyboard are the two most usually used input devices. The mouse is used to navigate the graphical user interface (GUI). 



Keyboard The keyboard is used to enter text commands that control the computer. 



Digital Camera Digital cameras and digital video cameras, create images that can be stored on magnetic media. The image is stored as a file that can be display, printed, or altered.



Touch Screen A touch screen has a pressure-sensitive transparent panel. The computer receives instructions specific to the place on the screen that the user touches.



Scanner  A scanner digitizes an image or document. The digitization of the image is stored as a file that can be displayed, printed, or altered. A bar code reader is a type of scanner that reads universal product code (UPC) bar codes. It is widely used for pricing and inventory information.



<span style="color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 130%; language: en-US;">Output devices

<span style="color: #000000; font-family: 'Comic Sans MS',cursive; font-size: 130%; language: en-US;">An output <span style="color: #000000; font-family: Georgia,serif; font-size: 12pt;">device is used to produce information to the user from a computer. Here are some examples of output devices

<span style="font-family: 'Comic Sans MS',cursive; font-size: 130%;">Monitors

<span style="font-family: Georgia,serif; font-size: 120%;">A computer's main way of outputting data is through its monitor. If an individual uses the keyboard to input a search term, the computer will then process that information and output the results of the search via its monitor. Monitors are available in a variety of sizes, brands and levels of quality

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<span style="font-family: Georgia,serif; font-size: 120%;">Speakers and headphones are output devices for audio signals. Most computers have audio support either integrated into the motherboard or on an adapter card. Audio support contains ports that allow input and output of audio signals. The audio card has an amplifier to power headphones and external speakers.



<span style="font-family: 'Comic Sans MS',cursive; font-size: 12pt;">Printers · <span style="font-family: Georgia,serif; font-size: 120%;">Printers produce a physical form of output. Data that the computer has processed, which usually takes place in a word processor, is made into a hard copy by printing. As computer technology has evolved so has printer technology. According to preventiveguru.com, there are four main types of printers: laser, inkjet, dot-matrix and thermal.



<span style="font-family: 'Comic Sans MS',cursive; font-size: 14pt;">Summary

<span style="font-family: Georgia,serif; font-size: 120%;">Input and output devices are very important parts of the computer.
 * <span style="font-family: Georgia,serif; font-size: 120%;"> Input devices used to input data into the computer. It includes: Mouse, Keyboard, digital cameras and digital video camera, biometric authentication devices and touch screen.


 * <span style="font-family: Georgia,serif; font-size: 120%;"> Output devices used to output information and data from the computer. Output devices includes: monitors, projectors, printers and scanners, fax machines, speakers and headphones.

<span style="font-family: 'Comic Sans MS',cursive; font-size: 12pt;">Resource <span style="font-family: Georgia,serif;">[]

<span style="font-family: Georgia,serif;">CISCO Networking Academy Program Website