Patent ID: 8606481

Claim:
A data write device that receives power supply from a first system guided from a power source and writes data in a nonvolatile first storage unit, the data write device comprising: a second storage unit that receives power supply from a second system guided from the power source and is able to store data; and a processor that executes control logic to perform the functions of: a request generation unit that generates a write request to write data in the first storage unit under a predetermined condition; a receiving unit that receives the write request from a user; a first write unit that writes target data stored in the second storage unit in the first storage unit in response to the write request, a second write unit that writes the target data stored in the second storage unit in the first storage unit if the power supply from the first system is stopped and then restarted at the time of writing by the first write unit; and a display control unit that causes a display device to display a write result of the target data in the first storage unit, wherein the display device carries out a predetermined initial display when the power supply from the first system is stopped and then restarted; and the second write unit is activated when the request generation unit generates the write request and is not activated when receiving the write request from the user.