| 摘要 |
By using a first recording medium (3) on which computer software is recorded and a programmable second recording medium (4), an inherent volume serial number VSN (HD) given to the recording medium (2) of hardware is recorded on the second recording medium as readable installation information number IIN (HD) of hardware at the time of installation, and the volume serial number of the recording medium and the installation information number of hardware are compared with each other at the time of re-installation. If they are different, the installation is rejected. Thus, the hardware is identified, and illegal copy to a large number of pieces of hardware can be avoided.
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