INFORMATION TERMINAL DEVICE, ITS OPERATION CONTROL METHOD, SPECIFIED INFORMATION STORAGE PROGRAM, STORAGE MEDIUM STORING THE SAME, CERTAIN INFORMATION CHANGING PROGRAM, TERMINAL OPERATION PROGRAM, STORAGE MEDIUM STORING THE SAME, AND CENTER

摘要

PROBLEM TO BE SOLVED: To provide an information terminal device for preventing certain information from being transferred from one storage medium to a plurality of information terminal devices. SOLUTION: A memory card 14 stores a serial number MID of the memory card 14 and a MID register program for registering the serial number MID in the information terminal device 10. At starting the information terminal device 10, the MID register program is downloaded from the mounted memory card 14 and the serial number MID stored in the memory card 14 is stored in a non-volatile flash ROM 30 in accordance with the program. Then, the MID register program is cleared out of the memory card 14 and the MID register program on a SDRAM 32 downloaded to the information terminal device 10 is made invalid. Such processing prevents the serial number of the memory card 14 from being thereafter stored in the other information terminal device 10. COPYRIGHT: (C)2004,JPO