Abstract: A card terminal for settling transactions with a prepaid card or a credit card using comprising a card reader for reading data out of the card, a data writer for writing data on the card, a display for indicating the customer's data, transaction data, and stamp points, and a keyboard for inputting sales data, customer's data, or stamp point data. The card terminal has at least one of the functions from among inquiring about the transaction, cancellation of the transaction, purchase of commodities, calculation of the service points in accordance with an amount of transaction, display of the personal anniversary of the customer, and writing the details of a transaction, the service points, or personal data, even if the card is prepaid card or a credit card. The service point can be increased in accordance with the convenience of the stores, such as a bonus sales and customer's anniversary, by setting a multiple at the card terminal.

Abstract: To provide a card processor capable of easily and quickly executing business processing by establishing an automated system that continuously executes related functions and copes with a plurality of functions in order to improve service and business efficiency by the use of the card processor which has a plurality of functions. The card processor has a pre-paid processing function and a point processing function, and includes an identification element for identifying the function possessed by a card depending upon the kind of the card, a judging element for judging a function that can be processed in an interlocked manner depending upon the result of identification by the identification, and an operation element for executing the arithmetic operation processing based upon the result of the judgement by the identification element and/or the judging element. The point processing is executed following the pre-paid processing in an interlocked manner.