| http://www.w3.org/ns/prov#value | - According to the feature of the present invention, the microprocessor 10 backs up data which will cause serious problems if it is damaged by a virus among data recorded on the disk 18, that is, system booting information and an FAT including the titles and positions of recorded data files in a maintenance area inaccessible to a general user, which will be described in more detail referring to the
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