Patent ID: 8442488

Claim:
A portable communication terminal, comprising: a processing unit that performs magnetic field communication based on a signal arriving from an external device, in a case in which the portable communication terminal approaches within a distance to the external device; a nonvolatile memory unit comprising a first memory and a second memory, wherein both the first memory and the second memory store use-enabled/disabled information indicating whether use of the processing unit is enabled; an information storage unit of volatile type that stores information that is the same as the use-enabled/disabled information stored in the nonvolatile memory unit; and a control unit that performs updating of the use-enabled/disabled information, wherein, when a signal arrives from the external device, the processing unit determines whether to perform predetermined processing, according to predetermined information based on the use-enabled/disabled information stored in the nonvolatile memory unit, wherein, when a request to change whether to enable use of the processing unit is performed, the control unit updates the use-enabled/disabled information stored in the first memory, the second memory, and the information storage unit, and wherein, in a case of a reset occurring, the control unit copies the use-enabled/disabled information, which is stored in the first memory, into the second memory and the information storage unit.