To easily confirm a latest added or decreased point among plural kinds of points by providing a discriminating means for discriminating latest data among the data read out of an IC card and applying identification information.

When data reading processing is completed normally, arithmetic processing is performed for adding the identification information for easily discriminating the latest number of added or decreased points among plural kinds of points under the control of a control part 11. When there are point data in the data, the data of a date and time are compared in the point data and a flag is raised on the latest data. This flag is detected for each of various points, and the identification information is added to the point with which the flag is detected. Each of the processing is performed to all points and after the data of the processing result are stored in a RAM 13, the IC card is deactivated. A menu picture is displayed. In the case of no data as the result of checking the presence/absence of point data, the IC card is deactivated and the menu picture is displayed.