Question

History of output devices

Answer 1

A – The monitor or the screen

Is an output device which permits the computer to paste data already processed Its dimension is expressed in inches, (an inch equal 2, 54 cm). There are screens of 15, 17, 19 and 21 inches which correspond to the diagonal of the screen. There are mainly two types of monitors which are traditional or ordinary monitors cathode Ray Tube (CRT) and the flat panel display (LCD) Liquid Crystal Display.

B – Printers

It is an output device which permits the sending out of treated texts and images by the computer on a paper that is sending out treated information in the form of hard copies. There are two types of printers: impact printers (line printers and character printers) and non impact printers (inkjet printers, laser printers and thermal printers).

C – Speakers

It is an output device which emits sounds and controls it at the start of the computer.