COMPUTER ARCHITECTURE
INPUTOUTPUT 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: -CRT display is more harmful to eyes as it radiates x rays due to usage of electron beam/phosphorus for producing display. 2.
Detailed explanation-2: -LCDs or flat panel displays weigh under 10 pounds (<4.5 kilograms), are only a few inches thick (<7.5 cm), consume only one-third to one-half the power of CRTs, emit very little radiation, and provide a crisp bright display that’s easier on the eyes.
Detailed explanation-3: -Is LED or LCD Better for the Eyes? An LED display provides the option to dim the backlight, along with other eye comfort features. Not only that, it provides a wider viewing angle without harming image quality. Therefore, an LED display is far better for your eyes than an LCD.
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.