output devices

What is an output device?

An output device is a piece of hardware that the computer uses to give us information in a suitable form.

Hard copy and soft copy

Output can be printed on paper, displayed on a screen or in the form of sound.

• information printed on paper is called hardcopy .

• information displayed on screen is called soft copy .

-Monitor ( visual display unit )

• used to display information produced by a computer. It displays text, graphics and video.

Older monitors made use of cathode ray tubes , which made them large and heavy , and they consumed a lot of electriciTy

Nowadays, flat panel monitors are used which are lighter , thinner and more energy efficient.