Which one of the following is not an output device ?

Printer

Speaker

Plotter

Optical Mouse

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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An Optical Mouse is an input device.

– Output devices receive data from a computer and present it in a human-readable form (visual, audio, physical print, etc.). Examples include printers, speakers, and plotters.
– Input devices send data and control signals to a computer. Examples include keyboards, mice, scanners, and microphones.
– An optical mouse detects movement and clicks, sending this information as input to the computer.

Printers create hard copies of digital documents. Speakers produce sound output. Plotters are used for drawing vector graphics, typically large-scale technical drawings.

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