The monitor of a computer or laptop works like a television screen. It displays text characters and graphics in colours or in shades of grey. The monitor is also known as screen, display or Cathode Ray Tube (CRT).
The images produced on the PC depend on the type of screen used. An image is made up of tiny dots called pixels. Anything type on keyboard will be displayed in the screen. When a program is executed information is displayed on the monitor.
At present various types of monitors are available in the market which includes monochrome monitor and colour monitors. They are distinct from each other in terms of resolution. Higher the resolution higher is the cost. Higher resolution monitors are used for creating graphics and images.
Cathode Ray Tube monitors are commons but Liquid crystal Display monitors have increased demand.