| 摘要 |
PURPOSE:To prevent the unfair use of a recording medium, by judging the recording medium as ineffective to perform a processing based on the unfair use when the total number of times of erroneous input exceeds a value for judgment of ineffectiveness. CONSTITUTION:An operation part 20 for customers is connected to a CPU11 of a transaction processing device 10. This operation part 20 includes a card reader 21, a keyboard 22, a display device 23, and a buzzer 24. A printer 12 prints and records transaction processing data to issue a receipt. In a cassette deck 13, processing data are gathered and recorded on a magnetic tape. Further, a program storage memory 15 and a processing data temporary storage memory 30 are connected to the CPU11. |
