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Electronic devices used to transmit data and commands to a computer.

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Mouse in which the ball is replaced by an optical system (light-emitting diode and sensor); it has no movable parts.

Device that measures the mouse’s movements by analyzing the light rays (emitted by a diode) reflected from its support surface.

Mechanical or optical mouse that contains a scroll wheel.

Button that transmits various commands to the computer.

Thumb wheel used to scroll down the contents of a window without using the scroll bar.

Flexible cable containing the conductors by which the mouse is attached to the computer.

Mechanical or optical mouse connected to the computer by infrared or radio signals.