Like other pointing devices such as mice, touchpads or trackballs, operating system software translates manipulation of the device into movements of the pointer or cursor on the monitor. ![]() IBM ThinkPad caps (left-to-right): Soft Dome, Soft Rim, Classic Dome, Eraser Head (discontinued)Ī pointing stick (or trackpoint, also referred to generically as a nub or nipple) is a small analog stick used as a pointing device typically mounted centrally in a computer keyboard.
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