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Headphones - speakers for a single user hearing the audio.

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Monitor - an electronic visual display with textual and graphical information from the computer.

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 Output unit  is used to communicate the results of data processing carried out by the processing unit to the outside world. The example of output devices are:
Printer - produces a permanent human-readable text or graphic documents.

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An example of audio input device is microphone, which provides input by converting sound into electric signals.

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Webcam - low resolution video camera used to provide visual input that can be easily transferred over the internet

Monitor - A monitor is the screen on which words, numbers, and graphics can be seem.  The monitor is the most common output device.

http://www.wacona.com/output/output.html

Floppy Disk - A floppy disk is used to record information on.  The information is stored on the floppy disk and can be used later or used on another computer.

Compact Disk - Some compact disks can be used to put information on.  This is called burning information to a CD.
NOTE:  A CD can also be an input device.

Computer output devices deliver data that has been processed by the computer to the user. There are a variety of devices that produce data in different forms including audio, visual and hard copy. Computer output devices are types of peripheral hardware connected to a computer, using cables or over a wireless network.

Read more: Examples of Output Devices of a Computer | eHow.com http://www.ehow.com/about_5300348_examples-output-devices-computer.html#ixzz1RmfgQdhQ

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