Computer Basic Information
A flat-bed plotter uses a pen which moves in two directions across a piece of paper fixed on a flat-bed. Can you tell who controls the movements of this pen?

None of these
film card
COM
microfilm
microfiche

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Computer Basic Information
The term USER INTERFACE refers to-

What the user sees on the screen and how they interact with it.
How the operating system responds to user commands
The means by which the user interacts with peripheral devices on the computer.
All of these

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