| 摘要 |
PURPOSE:To improve purchase desires by making it possible to subtract the number of stamps corresponding to the amount of purchase from a card recording the prescribed number of stamps. CONSTITUTION:An electronic cash register including a CPU and a memory is provided with a keyboard 2, a displayer 4, a card processor 5, and a receipt issuing printer and ten keys 2a and mode keys 2b are arranged on the keyboard 2. The amounts of commodities and their sections, etc., are inputted through the keys 2a, an amount key, a section key, an integration key, a card issuing key, etc., are formed on the keys 2b and a card No. and the number of service points in each purchase are stored in a magnetic stripe 6a of the card 6. The detection of the card 6, the reading of information from the stripe 6a and the writing of the new number of service points corresponding to the amount of purchase are executed by the processor 5 and the new number of service points obtained by subtracting the number of service points corresponding to the amount of purchase from the initial value of the number of points is written in the stripe 6a.
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