On the external packing film 124 of the memory card insertion section vicinity of the bottom surface of the digital camera 100, the ROM chip and the print wiring 131 are surface-mounted, and one end of the print wiring 131 is connected to the ROM chip 130, and the other end is connected to the external connecting terminal 132 provided on the bottom surface of the digital camera 100. A client computer appends absolute-value time stamps to the values to complete records, which are uploaded to a server. Expected attendance for an event is calculated and pre-issue tickets are allocated and distributed based on the expected attendance.