| 摘要 |
PURPOSE:To provide a data processing system which outputs sales specifications classified in housekeeping account book mention, which a customer obtains at every month in a sending possible state, by individual customers and which outputs prescribed discount coupons to the customer whose summed-up amount exceeds a prescribed amount and to the customer whose birth month is this month at every month in the sending possible state. CONSTITUTION:A customer information storage device 3 where customer information including the date of birth is registered, a customer information input device 4, a data processor 2, a sales input device 6, a sales information storage device 1 where sales information at every customer is registered by summing up, a sales specifications output device 5 outputting the sales specifications which are classified in a housekeeping account book by the individual customers at every month in the sending possible state and a discount coupon output device 7 outputting the discount, coupon to the customer whose birth month is this month in the sending possible state are provided. |
