COMPUTER OUTPUT DEVICES

COMPUTER OUTPUT DEVICES

AN OUTPUT DEVICES

An output device is a device that provides the result of data processing to the user. All output devices are grouped into a single unit of the computer hardware called OUTPUT UNIT.

Examples of Output Devices are;

1. Monitor ( also called Visual Display Unit-VDU)
2. Printer
3. Graph plotter
4. Speaker
5. Multimedia Projector.

 

FEATURES OF MONITOR

A Monitor produces softcopy output (i.e. output that can be viewed on theits screen) It has three parts, which are;

1. Power cable with which it connects to the power source.
2. Signal cable with which it connects to the system unit.
3. Its body (i.e. the screen and the internal parts.

 

TYPES OF MONITOR

A Monitor can be of two types;

1. Liquid Crystal Display (LCD) OR Thin Film Transistor (TFT).
2. Cathode Ray Tube (CRT)

 

HOW TO POWER THE MONITOR

1. Connect the rubber end of the power cable to the monitor and then connect the plug end to the power socket, the system unit or the UPS.
2. Connect its signal cable to the system unit by watching the pins carefully.
3. Put on the power socket and then put on the monitor.

EVALUATION:

1. What do you understand by output devices and give 2 examples.
2. Mention the two types of monitor.

1. 3. What type of output does a monitor produce?

[a] Hardcopy                     [b] Softcopy

 

See also:

COMPUTER INPUT DEVICES

COMPUTER INPUT DEVICES

HISTORICAL DEVELOPMENT OF COMPUTING DEVICES

HISTORICAL DEVELOPMENT OF COMPUTING DEVICES

HISTORICAL DEVELOPMENT OF COMPUTING DEVICES