| 摘要 |
PROBLEM TO BE SOLVED: To return a system to a normal state before a failure occurs when the failure takes place. SOLUTION: This system is provided with a central processing unit 1 outputting a data storage request in a fixed time interval according to a system idle mode or a system program, stores the entire data stored in a register and a storage device 3 in the unit 1 in a data storage/restoration circuit 2 according to the data storage request from the unit 1 and receives an inputted data restoration instruction to copy the stored data into the register and the device 3 of the unit 1. |
