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Monitor
A monitor looks like a television. It is also known as a Visual
Display Unit or VDU. The monitor shows the data that you input
and its result (output) after the computer processes it.
Speakers
Speakers are used to hear music, voice and sound on a computer.
Headphones
Headphones are used to listen to music and sound without
disturbing others as they are worn by an individual. But wearing
them for a long time can affect your hearing power and cause
damage to your ears.
Printer
A printer is used to print the result of the work done by the computer on paper. We can
print documents, drawings, images, etc. in black & white as well as in colour using a printer.
There are two types of printers.
Laser Printer
It uses a laser beam to print the hard copy.
Inkjet Printer
It sprays ink on the paper to print the hard copy.
Plotter
A plotter is used to print big sketches, diagrams and maps on long
sheets of paper. These are used by engineers, architects, scientists
and designers.
Projector
A projector projects or displays data of computer screen on a
large screen or surface for audience. The image shown by the
projector is larger in size then shown on the monitor.
10 Premium Edition-III

