Just solve the four question below

I’m stuck on a Computer Science question and need an explanation.

What technology is used by most mice?

choose the correct answer

– optical technology

– capacitance technology

– mechanical motion

What is the most obvious computer malfunction?

– unexpected restarts

– hard drive crash

– failure to power up

– screen remains blank

__________________ is the general category of input device that allows you to manipulate an on-screen pointer and other screen-based graphical controls.

Which of the following features defines the number of colors a device can display?

– brightness

– color gamma

– dot pitch

– color depth

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