keyboard is a device to input text and characters by depressing
buttons(referred to as keys) similar to a typewriter.
Mouse is a pointng device detects two dimensional motion relative
to its supporting surface.
Optical mouse is a new techonology that uses lasers or more
commonly LEDs to track the surface under the mouse to determine
motion of the mouse to be translated into mouse movements
on the screen.
Trackball is a pointing device consisting of an exposed protruding
ball housed in a socket that detects rotation about two axes.
Joystick is a general control device that consists of a handheld
stick that pivots around one end to detect angles in two or three
dimensions.
Gamepad is a general handheld game controller that relies on the
digits(especially thumbs) to provide input.
Game controller is a specific type of controller specialized for
certain gaming purposes.
buttons(referred to as keys) similar to a typewriter.
Mouse is a pointng device detects two dimensional motion relative
to its supporting surface.
Optical mouse is a new techonology that uses lasers or more
commonly LEDs to track the surface under the mouse to determine
motion of the mouse to be translated into mouse movements
on the screen.
Trackball is a pointing device consisting of an exposed protruding
ball housed in a socket that detects rotation about two axes.
Joystick is a general control device that consists of a handheld
stick that pivots around one end to detect angles in two or three
dimensions.
Gamepad is a general handheld game controller that relies on the
digits(especially thumbs) to provide input.
Game controller is a specific type of controller specialized for
certain gaming purposes.
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