PURPOSE: To easily grasp plural data without being accompanied with a large sight line movement by arranging plural data on one display area.

CONSTITUTION: In a processor 3, a data arrangement control part 3a, a data display area control part 3b, and a field analyzing part 3c are provided. The data arrangement control part 3a generates a set from a field designated by an input device in each field on a storage device 1. The data display area control part 3b generates an area for displaying the field for constituting the set generated by the data arrangement control par 3a on one cell. That is, by control of the data arrangement control part 3a, the set of data arranged on the same display area is determined, and by control of the data display area control part 3b, a display area which can display the data for constituting the set is set, and plural data are arranged on it display area.