Page 16 - Digital Age - 3

on a monitor is called soft copy. Monitors can be CRT monitors, Flat screen monitors,

or Touchscreen monitors.

CRT monitor Flat screen monitor Touchscreen monitor

Printer
Printer is an output device used to print the output displayed on the monitor on paper.

The output produced by a printer is called a printout or hard copy. Printers are of
different types:
• Dot matrix printer: It prints by striking a group of pins on paper in the form of

round dots. It is cheap, noisy, and prints only in black colour. It is usually used to
print bills and invoices in offices and shops.

• Inkjet printer: It prints by spraying droplets of ink on paper to form text and
images. It can print both in black and colour. Its print quality is better than that
of a Dot matrix printer.

• Laser printer: It uses a laser to burn characters and images on paper. It produces
best quality output, prints both in black and colour, is fast, and does not make
any noise.

Dot matrix printer Inkjet printer Laser printer

Speakers
Speakers are output devices that produce audio output.

They are used to play music and sounds. Speakers can
be headphones or desktop speakers.
Headphones Desktop speakers
Projector
Projector is an output device used to display the output
displayed from the monitor onto a screen or a wall. It is used
for displaying presentations or movies for a large group of

Projector people.
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