A tablet terminal receives a triggering indication to enable a detection result of eye gaze, and sets a target area in which the presence of a target object is assumed on a screen of a touch panel using a detection position of eye gaze. The tablet terminal further displays a partial image displayed in the target area out of an image displayed on the screen in an aiming area in which a touch operation to the target area is received in place of the target area, and records a correspondence relation between coordinates of the aiming area and coordinates of the target area. When a touch operation is received within the aiming area, the tablet terminal converts the coordinates of the aiming area in which the touch operation is received into the coordinates projected to the target area using the correspondence relation recorded, and then outputs the converted coordinates.
