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The optical scanner is a ...

Output device

Input device

Input / output

All answers are incorrect

Optical scanner in computers is a peripheral input device. An optical reader is a device found within most computer scanners that captures visual information and translates the image into digital information the computer is capable of understanding and displaying.

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brandon schauer wikipedia → Optical reader

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When was the first electronic computer created and what was its name?

in 1945 - Eniac

in 1943 - Colossus

in 1939 - Atanasoff-Berry ABC

in 1941 - Zuse's Z3 machine

Ubuntu is the most popular Linux distribution, developed by Canonical Software owned by Mark Shuttleworth. What else is Mark famous for?

being a movie star

being an Olympic games attendant

being an astronaut

owning a submarine

What material is computer's processor made of?

single crystal ruby

single crystal silicon

silicon polycrystal

What display resolution is called "Full HD"?