| 摘要 |
A card sub-system includes a negative display unit and a positive display unit and means for transmitting transaction data. A transaction sub-system includes terminals adapted to receive transaction data transmitted from the card sub-system. A server sub-system is adapted to receive transaction data from the transaction sub-system and adapted to transmit transaction data and account information. An EFT network sub-system is included for receiving transaction data from the transaction sub-system and delivering it to the application server and for receiving transaction data and account information from the server sub-system. A method includes the manipulation and transfer of data within and between the sub-systems.
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