Computer Studies Made Simple: Display Screens : CRT Monitor

CRT Monitor

CRT monitors is the most common form of display screen.

It looks like a television.

It can display text and graphics.

It uses a CRT : Cathode Ray Tube.

CRT tube creates an image on the screen by an electronic beam.CRT consists of one or more guns that fire 

a beam of electrons inside the screen.

The screen is coated with very tiny phosphate dots from the inside.

The beam of electrons repeatedly falls on the surface of the screen.

Every beam fall only takes a fraction of a second.

CRT in monitors consist of three guns.

The guns generate Red Green and Blue colors (RGB).

The other colors are generated with combination of these three colors.