An input control device ( ) includes a touchpad ( ) located near an associated keyboard ( ) for use with a computer-related apparatus ( ). The touchpad ( ) is positioned so that it can be reached by the users thumbs ( ) during normal operation of the associated keyboard ( ). The location of the touchpad ( ) is such that a ridge ( ) protruding near the edge of the touchpad ( ) is encountered by the users thumbs ( ) both when moved inadvertently during normal typing operations and when intentionally moved toward the touchpad ( ). In this way, the ridge ( ) signals the boundary with the touchpad ( ) so that the user can proceed to activate it if desired, or can avoid activating it if not desired.