Patent ID: 8826263

Claim:
A portable terminal comprising: a memory that stores at least a first program, which when executed by the portable terminal, causes the portable terminal to communicate according to a first communication method, and software converting data to convert said first program into a second program, which when executed by the portable terminal, causes the portable terminal to communicate according to a second communication method that is different from the first communication method; and circuitry configured to: perform reading and writing of the first program and data as to said memory; execute processing that converts said first program into the second program, using the first program and the software converting data read from the memory; and execute, at a time of terminal startup, one or the other of starting up said first program, and starting up the conversion processing from the first program to the second program and the second program that has been converted, wherein the first communication method is a Code Division Multiple Access (CDMA) communication method and the second method is a Global Systems for Mobile (GSM) communication method.