INFORMATION PROCESSOR CAPABLE OF SWITCHING OPERATION SYSTEMS

摘要

PROBLEM TO BE SOLVED: To provide an information processor capable of switching a plurality of operating systems (OS), which can protect information held in an OS from the other OS. SOLUTION: The information processor capable of switching a first OS and a second OS clears the internal of a CPU and shuts-off a memory region in which data managed by the first OS is stored, in the switching processing from the first OS to the second OS, thereby protecting the data managed by the first OS from the second OS. COPYRIGHT: (C)2005,JPO&NCIPI