| 摘要 |
PROBLEM TO BE SOLVED: To provide a multi-functional card system of increased recording capacity and high security function at the time of using an automatic transaction device and an individual terminal. SOLUTION: This system is provided with plural EEP(electrically erasable and programmable) ROMs 9a and 9b storing transaction history information. At the time of storing information in the EEPROMs 9a and 9b, information is stored in the storage areas of the transaction history information from ATM through an electrically joining part 5 of a contact type and even when transaction information is stored in all the storage areas and additional transaction information is required, transaction information stored in a first storage area is erased to store transaction information in the erased area. |
