Patent ID: 8001369

Claim:
An information processing unit comprising: a first memory that stores a BIOS program beforehand that is executed at a startup of the unit so as to allow peripheral devices to operate normally, the first memory storing initial BIOS data beforehand; a second memory storing BIOS data with which the BIOS program is executed; and a controller configured to: (a) if the initial BIOS data is updated, read updated BIOS data including data with no changes and updated data that is changed from the first memory and write the updated BIOS data into the second memory; (b) if the initial BIOS data is not updated, read the initial BIOS data that is not changed from the first memory and write the initial BIOS data into the second memory; and (c) execute the BIOS program using one of the updated BIOS data and the initial BIOS data written in the second memory.