| 摘要 |
When a card reader detects that a magnetic card is inserted (YES in S 1 ), an operative program stored in the magnetic card is installed in a storage unit by an installing unit (S 3 ), while when the card reader detects that the magnetic card is removed (YES in S 4 ), the operative control program installed hitherto is uninstalled from the storage unit by an uninstalling unit (S 5 ).
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