An eraser pointer is an isometric pointing device that looks like a joystick or pencil eraser head. This cursor control device sits between the G, H, and B keys on keyboards. Pushing the pointer in one direction moves the cursor in the same direction. Cursor speed can be increased by increasing pressure.In 1992, the eraser pointer was released by IBM as the TrackPoint, which is built into most ThinkPad (owned by Lenovo) laptop computers.
Eraser pointer technology allows users to control mouse movements while using a keyboard. Because of its keyboard location, the pointer works equally well for left- or right-handed users.This pointer has a red, replaceable tip called a nipple.
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