| 摘要 |
PURPOSE:To ensure the smooth purchase and sale of used cars by recording the sale data or purchase data to a recorder and retrieving, extracting and displaying the data of the prescribed conditions out of the recorded data. CONSTITUTION:A seller of a used car transmits the sale data on the car including the type of car, price, number of years used, distance traveled, presence or absence of car inspection, etc. to an information processing part 4. In this case, the sale data is displayed on a sale sheet 6 for each item and collected to the part 4 to be changed into a card. This data card is recorded retrievably by a recorder 2. While a purchaser transmits purchase conditions to the part 4 as the purchase data via a purchase sheet 7. Here the coincident items between the sale and purchase data are set previously or the order is set among desired items. At the same time, an allowable range is also set previously to cope with a case where no coincidence is obtained with all items. Then the retrieved 3 optimum sale data is sent to the purchaser via a device 5. |
