A  CRT MONITOR OR LCD DISPLAY  

A CRT MONITOR OR AN LCD DISPLAY

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A CRT monitor, like a small TV, is based on a device called a Cathode Ray Tube.  It generates an electron beam.  When the electron beam hits the phosphor-coated screen it will emit light.  This is the image seen on the screen.

CRT monitors are generally of low price and with good quality.  They are commonly used by desktop computers.

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LCD or flat panel monitor is light in weight, small in size, and consume less electricity and generates much less heat. 

There's no flicker problem. and is better for prolonged viewing.

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