Buy a Computer Monitor

Technology of monitor.

These are two basic types of monitors that are used with personal computer.

  • CRT monitors
  • Flat-Panel Monitors

When purchasing a computer monitor it is important to know if you want a CRT monitor or a Flat Panel monitor.

CRT Monitors. A CRT monitor is similar to standard television. Like televisions, CRT monitor size is measured diagonally, in inches, across the front of the screen. Today, CRT monitors are available in various sizes, i.e., 15, 17, 19, 21, and 22 inches. The large size monitors are more expensive and allow you to view more information on the screen at once.

Flat Panel / LCD. A flat panel monitor is also called LCD monitor. A flat panel monitor takes up less desk space and also consumes less power. Flat panel monitors are available with different sizes such as 15, 17, 18, 20, 21, and 23 inches. Flat panel monitors are commonly used in mobile devices such as laptop and table PCs. Similarly, smart phones, PDAs calculators have LCD screens.

There are two main categories of LCDs. These are

  • Active Matrix LCD
  • Passive Matrix LCD


The quality of monitor screen depends on its resolution, which is generally proportional to the size of screen.

  • 15″ monitor typically has a resolution of 800 x 600 / 1,024 x 768
  • 17″ monitor typically has a resolution of 1,280 x 1,024
  • 19″ monitor typically has a resolution of 1,280 x 1024
  • 21″ monitor typically has a resolution of 1,600 x 1,200.