COMPUTER HARDWARE COMPONENTS FUNCTIONS
COMPUTER OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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CRT
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TFT
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LCD
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LED
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Detailed explanation-1: -Old-style CRT monitors are known to emit UV light, which can promote cataracts and macular degeneration. Modern LCD screens tend to emit light from the blue end of the spectrum known as HEV (high-energy visible) light.
Detailed explanation-2: -Less eye strain-Because LCD displays turn each pixel off individually, they do not produce a flicker like CRT displays do. In addition, LCD displays do a better job of displaying text compared with CRT displays.
Detailed explanation-3: -Blue light has a short wave-length and is known for causing damage to the eye.
Detailed explanation-4: -The display device in a CRT monitor is a cathode ray tube which is inherently bulky and power-thirsty whereas the display device in a TFT monitor is a flat array of Thin Film Transistors which makes the TFT monitors much smaller in size and also less power consuming.