Define Monitor

Out of all the output devices, monitor is perhaps the most important output devices because people interact with this device most intensively than device most intensively than others. Computer information is displayed, visually with a video adapter card and monitor. Information processed within the CPU, that needs to be visually displayed, is sent to video adapter. The video adapter converts information from the format used, in the same manner as a television displays information sent to it by a cable service.

Two basic types of monitors are used with microcomputers, which are a follows:

1. CRT
2. LCD

Cathode Ray Tube (CRT): CRT or Cathode Ray Tube Monitor is the typical monitor that you see in a desktop computer. It looks a lot like a television screen, and works the same way. This type uses a large vacuum tube, called cathode ray tube (CRT).

Fig. Cathode Ray Tube(CRT)

Liquid Crystal Displays (LCD): This type of monitors are also known as flat panel monitor. Most of these employ Liquid crystal displays (LCDs) to render images. These days LCD monitor are very popular.

Fig. Liquid Crystal Display(LCD)

When people talk about the capabilities of various monitors, one critical statistic is the resolution of the monitors. Most common monitor have a resolution of at least 1280*720 pixels. High-end monitors can have resolution of 4K or 8K(4000*3800)pixels or  even 5000*4800 pixels. Thus monitors are available either in low resolution or in high resolution.