Noun
trackpoint (plural trackpoints)
(computing) An individual record within a GPS of a visited location.
Embedded below the keyboard are the buttons for controlling that TrackPoint and a one-button TrackPad so that users can skip an external mouse. Source: Internet
The keyboard is as good as it gets, and there's a TrackPoint with physical buttons for anyone who prefers the ThinkPad way over a classic touchpad. Source: Internet