may be configured by one detector element or by a group comprising a plurality of detector elements fig3 is a diagram showing an example of the aforementioned touchpad as shown in such figure for example a plurality of touch sensors are arranged in a matrix in a square area indicated by horizontal lines on the touchpad when a user touches the touch sensor a with his or her finger or using a stylus pen etc the coordinate information for the same is acquired and the tapping action on the position is read moreover as shown in this figure a light emitting body such as a led light emitting diode may be embedded and arranged near the touch sensor for u201c distinction for touching guidance u201d described below the u201c icon arrangement information acquisition unit 0202 u201d has a function for acquiring icon arrangement information on the aforementioned gui of the display apparatus for instance such unit can be implemented by a calculator a communication circuit or a program for acquiring icon arrangement information etc in addition various specific pieces of icon arrangement information described above that indicate icon arrangement positions on the gui can be used for instance icon arrangement information may be icon position information i e coordinate information on a gui alternatively it is acceptable to divide the detection area of the touchpad into areas such as upper right area upper left area lower right area or lower left area etc and to store table information as shown in fig4 a where distinction information of the respective areas and position information included in such areas are correlated therefore it is acceptable to acquire the area distinction information as the icon arrangement information.