Which of the following is an output device?a)Magnetic Ink Character Recognition (MICR)b)Optical Character Recognition (OCR)c)Optical Mark Reading (OMR)d)Visual Display Unit (VDU)e)All of the aboveCorrect answer is option 'D'. Can you explain this answer?

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Which of the following is an output device?

a)
Magnetic Ink Character Recognition (MICR)
b)
Optical Character Recognition (OCR)
c)
Optical Mark Reading (OMR)
d)
Visual Display Unit (VDU)
e)
All of the above

Correct answer is option 'D'. Can you explain this answer?

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Most Upvoted Answer

Which of the following is an output device?a)Magnetic Ink Character Re...

An output device is any piece of computer hardware equipment which converts information into human-readable form. It can be text, graphics, tactile, audio, and video. Some of the output devices are Visual Display Units (VDU) i.e. a Monitor, Printer, Graphics Output devices, Plotters, Speakers etc:

A Visual Display Unit is the most popular output device used for producing soft copy output generated by a computer or other electronic devices.
It is commonly known as a Monitor. a V.D.U. may be peripheral or may be integrated with the other components. Early V.D.U. were primarily Cathode Ray Tube (CRT) displayed and typically had a diagonal size of 13 inches or less.
During the 1990s, 15" and 17" displays became standard, and some manufacturers began producing displays over 20" in size. At the turn of the century, flat panel displays became more common, and by 2006, CRT displays were hard to find.
Today, it is common for computers to come with VDUs that are 20" to 30" in size. Thanks to the recent growth in LCD, plasma, and LED technology, manufacturing large screens is much more cost-effective than before.

Note: Magnetic Ink Character Recognition (MICR), Optical Character Recognition (OCR), Optical Mark Reading (OMR) are all input devices. In computing, an input device is a piece of computer hardware equipment used to provide data and control signals to an information processing system such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, digital cameras, joysticks, and microphones.

Hence, we conclude that the Visual Display Unit (VDU) is an output device.

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