| 摘要 |
PROBLEM TO BE SOLVED: To use one cellular phone terminal as a plurality of portable devices without increasing ROM capacity by downloading an applicable program to a portable terminal to be automatically executed by a comparatively simple operation and when it is necessary. SOLUTION: Special software except software as a normal cellular phone, stored in a built-in ROM 2 in the cellular phone terminal 6 is stored in a memory card 4. When the memory card 4 is attached to the cellular phone terminal 6 and execution of the software is instructed, a CPU 1 reads the software from the memory card 4 to be copied to a RAM 3. Then, the CPU 1 controls the cellular phone terminal 6 as the devices exclusive for the software by executing the software program while accessing the RAM 3. COPYRIGHT: (C)2009,JPO&INPIT
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