| 摘要 |
PURPOSE:To obtain the balance of debt and credit at every customer, and to automatically manage the balance of credit, by inputting and operating input/ output payment data at every customer, through the provision of a plurality of storage areas. CONSTITUTION:A CPU1 is connected with a memory 5, an input control section 2, a display control section 3 and a print control section 4 via common buses AB,CB and DB. The memory 5 is provided with a memory 5a at every customer, and data such as amount of credit sales, date, quantity, amount of payment, and date are inputted with the key operation under the control of the CPU1 and summarizes at every customers. As required, the display control section 3 is driven for display, and a print control section 4 is driven to output print 8. Thus, the management of credit sales at every customers can be rationalized. |
