| 摘要 |
PROBLEM TO BE SOLVED: To make a memory efficient by sharing the common part of file control information for each file as plural pieces of application data. SOLUTION: File creation information is inputted from an external device when a certain file is created. In the case where there is information that can be shared by the existing file control information generated before a new file when generating new file control information in a card on the basis of the information, the shared information is replaced with pointer information showing the physical arrangement of the existing file control information, and a new file control information is set to a data memory 12. |
