To easily prevent unauthorized copy of data for use.

This system has a volatile memory to store the identification value attached to the data read from an information storage reading device, a nonvolatile memory to store the above identification value, a power supply to supply backup power to the above volatile memory, a back-up power cutoff means to cut off the backup power from the above power supply to the above volatile memory at the removal of the above information record reading device from the above system, and an operation permission means to permit the operation of the above system when the identification value stored in the above volatile memory matches the identification value stored in the nonvolatile memory.