A few decades back, there were computers, but no monitors.Today, it is difficult to imagine a computer without a monitor.Monitor is also called as screen, display unit, or CRT.Almost, everything you type using keyword is displayed on the screen.
Also, the output from computer can be conveniently displayed on the screen.Monitors come in the following types: monochrome ( back and white) , colour, and LED ( liquid crystal display) .In notebook computer, an LED screen used.The resolution of a typical SVGA pixels.