SS1 First Term Computer Studies Lesson Note – Output Devices

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WEEK 8

OUTPUT DEVICES

CONTENTS

• Definition of output devices
• Features and uses of output devices
• Monitor – Structure, types and functions

Sub-topic 1

DEFINITION OF OUTPUT DEVICES

This is a device that releases the processed data from the computer to either the user or any of the storage devices. Or they are peripherals of the computer that transfer information from the computer to the user. There are many devices that produce data in different form such as audio, visual and hard copy. E,g. Monitor, printer, plotter, speaker, headphone etc

Features and uses of output devices

Monitor

This is an output device that resembles the television screen. Modern computer monitors can display a wide variety of information, including text, icons (pictures representing commands), photograph, graphics, video and animation. It is the most commonly used output device. The monitor is a soft copy (means we can modify contents of data and data is temporarily on the screen) output device.

Printers:
Printers are the most commonly used output devices that can be found in almost all computer centers. Printers are used to get prints of important documents on a paper. The output, which is generated by a printer, is called hard copy of the data. Printer is also called a hard copy output device.

Projector:
Projector is also an output device.
It is used to show presentations. There two main types of projector.

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