Which of the following is an input device that is used for controlling machines such as cranes, trucks,
underwater unmanned vehicles,
wheelchairs, surveillance cameras, and zero turning radius lawn mowers?

A.
PS/2

B.
Joystick

C.
Microphone

D.
AGP

Explanation:
A joystick is an input device consisting of a stick that pivots on a base and reports its
angle or direction to the device it is controlling. Joysticks
are often used to control video games, and usually have one or more push-buttons whose state can
also be read by the computer. A popular
variation of the joystick used on modern video game consoles is the analog stick.