COMPUTER HARDWARE
OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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input
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output
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Either A or B
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None of the above
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Detailed explanation-1: -A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly but instead use a backlight or reflector to produce images in color or monochrome.
Detailed explanation-2: -LCD (Liquid Crystal Display) is a type of flat panel display which uses liquid crystals in its primary form of operation. LEDs have a large and varying set of use cases for consumers and businesses, as they can be commonly found in smartphones, televisions, computer monitors and instrument panels.
Detailed explanation-3: -The computer monitor is an output device of the computer system . It is considered one of the most popular output devices used and utilized extensively. The monitors are devices that are easily attached to a computer system to view images, text, and videos. They are electronic devices also called “Visual Display Unit.”
Detailed explanation-4: -A special output device: Light Emitting Diode Unlike filament lamps, where electrical energy must be converted into heat before light can be produced, Light Emitting Diodes (LEDs) are able to transform electrical energy directly into light energy.
Detailed explanation-5: -Examples include monitors, printers, speakers, headphones, projectors, GPS devices, optical mark readers, and braille readers.