| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for improving the operating efficiency of equipment. SOLUTION: When lower rank equipment 3 which transfers data through a shared memory 2 with host equipment 1 writes data received from the host equipment 1 in a non-volatile memory 5, the lower rank equipment 3 stores the received data in a volatile memory 4, and immediately issues the notification of the completion of the reception to the host equipment 1, and writes the data stored in the volatile memory 4 in a non-volatile memory 5.
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