| 摘要 |
PROBLEM TO BE SOLVED: To surely execute a backup when a setting content is changed, and to prevent the backup of a changed setting content from being forgotten.SOLUTION: A RAM 13 stores a content of each of various kinds of settings for registering sales data. A CPU 10 performs a registration of the sales data on the basis of the content of the setting stored in the RAM 13. The CPU 10 changes the content of the setting stored in the RAM 13. The CPU 10 changes over a mode to any of a plurality of kinds of modes. A memory card 190 stores backup data on the content of the setting stored in the RAM 13. When the changeover of the mode is performed, the CPU 10 stores the backup data on the content of the setting stored in the RAM 13 in the memory card 190. |
