| 摘要 |
A game machine (10) includes a card interface (11) configured so that a magnetic card (20) is detachably attached thereto, an element (12) to record a card ID generated on the basis of time information specifying the date and time when the magnetic card (20) is attached to the card interface (11) in a magnetic data recording area (22) provided in the magnetic card (20), and an element (14) to print an access code uniquely obtained by the calculation of a predetermined function based on the card ID in a printing area (21) of the magnetic card (20). |
