PURPOSE: To make an indicated coordinate easily and visually confirmable to easily operate a pointing device in dot unit by displaying the image data of coordinates near the indicated coordinate in an enlarged state and showing the position of the indicated coordinate in displayed image data.

CONSTITUTION: A coordinate acquiring section 2 obtains the currently indicated coordinates in accordance with a signal from a pointing device 1. Then an image information acquiring section 3 obtains the image displaying information of coordinates near the indicated coordinates against an operating system 4. Then a cursor image constituting section 5 constitutes a cursor image by enlarging the image of coordinates near the indicated coordinates on the basis of the image displaying information and marks the dot of the indicated coordinates with an indicated dot identification mark. Finally, a cursor display section 6 instructs a display device 7 to display the cursor image. Therefore, indicated coordinates can be confirmed accurately and visually and the pointing device can be easily operated in dot unit.