Techinfoworld Blog

COMPUTER’S MONITOR

Monitor is another term for the display screen. The term monitor, however, usually refers to the entire box, whereas display screen can mean just the screen.

Computer Monitor

In addition, the term monitor often implies graphics capabilities.

The MONITORs has own classification from its specification and manufaturing methods.

We presented here the CLASSIFICATION OF MONITORS – BASED ON COLOUR:

There are many ways to classify monitors. The most basic is in terms of colour capabilities, which separates monitors into three classes:

Monochrome

Monochrome

The Monochrome monitors actually display two colours, one for the background and one for the foreground.The colours can be black and white, green and black, or amber and black combination.

Gray-scale

Gray-Scale

A Gray-scale monitor is a special type  of monochrome monitor capable of displaying different shades of gray.

Colour

Today we are in this COLOR trend, a Colour monitor has capable of display 16 to over 1 million different colours.It sometimes called RGB(Red+ Green + Blue). This differes from colour televisions, for example which use composite video signals, in which all the colours are mixed together. But an RGB monitor consists of a vacum tube with three electorn guns  – one each for red, green, and blue at one end and the screen at the other end.

Colour Monitor - LCD

How it works? – the answer is, The three electron guns fire electrons at the screen, which contains a phosphorous coating. When the electron beams excite the phosphors, they glow. Depending on which beam excites them, they glow red, green, or blue. Ideally, the three beams should converge for each point on the screen so that each pixel is a combination of the three colours.

what is the major difference among them? – is, Colour and gray-scaling monitors are often classified by the number of bits they use to represent each pixel.

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