| 摘要 |
PURPOSE:To strengthen safety at the time of loading/unloading a display device and the protection of a system device by storing information on a system state at a time when the display device is unloaded, interrupting a power source and starting a system in a state where the power source is interrupted at the time of inserting the power source again. CONSTITUTION:When the display device 2 is loaded/unloaded while the system is being operated, a control circuit 3 informs CPU 1 of the loading/unloading information of the display device. CPU 1 stores information of the system state in a memory with backup 4, transmits a control signal to a power source device 5 after the termination of a storage operation, and the power source device 5 interrupts power supplied to the system and the display device 2. When the power source device 5 is inputted after the loading/unloading operation of the display device 2 is completed, CPU 1 reads information on the system state when the display device 2 is loaded/unloaded from the memory 4 and restarts the system in the same state as the loading/unloading time of the display device 2. Thus, safety at the time of loading/unloading the display device and the protection of the system device are strengthened. |
