| http://www.w3.org/ns/prov#value | - In an apparatus, including a data processing system powered by a power supply, and carrying out data processing in accordance with a program stored in a memory, a power ON/OFF control means and wherein at least one of said data processing system and/or said power ON/OFF control means include a timer means, a power control method for timely switching ON and OFF said power supply by said power ON/OF
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