2. Computer is fed with a lot of data to be processed and
organised.
The data that has been processed into a useful form is
called OUTPUT.
Output is the result we get through output devices.
Examples of out devices are:
Monitor
Printer
Speaker
Headphone
3. A monitor is an output device similar to a television
screen.
It is used to display text and graphics.
There are several types of monitor:
video monitor
Device with a cathode ray surface that displays
computer-generated graphics and texts visually.
flat screen monitor
Thin screen that usually has a liquid crystal display or
plasma display surface.
4.
5. A printer is an output device that print text and
graphics from a computer onto paper.
A printer can produce both black and white and
colour images.
Examples of printers are:
• Laser printer – print created by applying ink powder
(toner) to drum
• Dot-matrix printer – print using the typewriter
approach by pushing the pins against the ink ribbon
to form characters.
• Ink-jet printer - print created by spraying dots of
ink onto paper
7. A speaker allows you to hear the sound generated by
your computer.
Speaker produces sound or music.
8. Headphone is used to listen
to music and sounds.
Headphone usually have
strap that rests on top of the
head and a pair of speakers
over both ears.
