| 摘要 |
PROBLEM TO BE SOLVED: To collectively manage and efficiently operate sales data as tanking data by one master machine in a POS system. SOLUTION: In a storage mode, each POS terminal 11 sends sales data to the POS master machine 12 as tanking data. The master machine 12 stores the tanking data. In a tanking data access mode, the terminal 11 sends an access command for specifying tanking data to be accessed from the master machine 12. The master machine 12 sends the tanking data to the terminal 11 as search data in accordance with the access command. |
