To make a PDA function as an entertaining game machine.

A vibrator 122 is provided on an existing memory card 1. A game picture is displayed on a PDA with the memory card 1 to progress a game. For instance, when a condition such as a ball collides with an obstacle is generated, the PDA supplies vibration data to a signal control part 21. The signal control part 21 outputs the vibration data to the vibrator 122 via a D/A converting part 121. The vibrator 122 generates vibration corresponding to an inputted signal. That is, because a user holding the PDA can progress a game while feeling the vibration, the PDA can be used as a more interesting game machine. This invention can be applied to a memory card.