| 摘要 |
PURPOSE:To enable a customer to do shopping without cash by storing the kept amounts of money by customers and by subtracting the input total amount of money from the kept amount of money in a storage means which corresponds to a special customer specified in registration. CONSTITUTION:The kept amounts of money by customers are stored and customer specifying data is inputted to read the kept amount of monet in a storing means which corresponds to the specifying data, thereby subtracting the input total amount of money by registration from the kept amount of money. For example, a system shown in the figure is used and data by customers, such as the kept amounts of money of customers are stored in the customer memory of a totalizing memory 5 through the key operation of an input part 6. After amount data of an article that a customer bought is inputted in a ''registration'' mode specified state, a customer number key is operated to perform the subtraction from the amount of money of the customer by a CPU1. |
