Question

Which of the following does not represent an I/O device?
(a) Speaker
(b) Plotter
(c) Joystick
(d) CU

Answer 1

Answer:

Plotter

Explanation:

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Answer 2

CU does not represent an I/O device

CU (Control unit)

• A control unit, or CU, is circuitry within a computer's processor that directs operations. It instructs the logic unit, memory, and both input and output devices of the computer on how to respond to program instructions.
• A computer speaker is a sound-generating output device that connects to a computer.
• A plotter is a type of output device that is similar to a printer and is used to print vector graphics.
• A joystick is a type of input device that is frequently used to control video games.