| 摘要 |
PROBLEM TO BE SOLVED: To provide a POS system that operates with minimum functions required for operation even if an error occurs in a storage due to the end of life or the like.SOLUTION: The POS terminal apparatus includes a control unit that selectively executes processing based on a normal program or processing based on an emergency program after start-up, a readable and writable first storing unit that stores the normal program, a second storing unit that stores in advance the emergency program, an error detecting unit that detects a read/write error with respect to the first storing unit. The control unit sequentially reads normal programs from the first storing unit to execute processing while accessing the first storing unit, and executes processing based on the emergency program by reboot when the read/write error with respect to the first storing unit is detected by the error detecting unit. The emergency program causes the control unit to process a part of the function of the normal program and execute the processing without accessing the first storing unit. |
