To appropriately turn-on/off the automatic power supply to a peripheral device in accordance with the turning-on/off of the power supply to a processor, by turning off the automatic power supply only when the power supply to all devices of one or a plurality of device groups related to a device for managing turning-on/off of power supply to shared device is turned off.
A small-sized switch is used as an association setting means 1201 to associate power supply receptacles 111 and 112 for PC with power supply receptacles 113, 114, and 115 for I/O. When the power supply to one of the receptacles 111 and 112 for PC is turned on by turning on the switch, the power supply to the corresponding receptacle for I/O is turned on. When the switch is turned of, on the contrary, the receptacles 113, 114, and 115 are maintained as they are regardless of the power supply to the receptacles 111 and 112. Therefore, the power supply to the receptacles 113, 114, and 115 is turned on even when power supply is made to either one of the corresponding receptacles 111 and 112 for PC and turned off only when the power supply to all receptacles 111 and 112 is turned off.
OSHIMA KEIJI
FUKAYA NOBUO
YOSHIMURA KOJI
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