INFORMATION PROCESSOR

PROBLEM TO BE SOLVED: To read a voltage abnormal variation log stored previously from the outside even if an information processor becomes defective at startup. SOLUTION: An information processor 1 operates by receiving AC power supply from a commercial power source, and includes an AC abnormality detection circuit 20 for detecting a voltage abnormal variation of the commercial power source, a non-volatile memory 43 for storing the log related to the voltage abnormal variation, and a second control means for operating asynchronously with a first control means for controlling a main unit of the information processor 1. When the first control means is inoperative, the second control means performs the reading and writing of the log related to the voltage abnormal variation from/to the non-volatile memory 43, or transmits data of the log related to the voltage abnormal variation to an external PC 2. COPYRIGHT: (C)2011,JPO&INPIT