| 摘要 |
PURPOSE: A system for saving a consumption power of a PDA(Personal Digital Assistant)a having a communication function is provided to increase a use time by saving the consumption power. CONSTITUTION: A main display(201) is used in only a PDA mode. An auxiliary display(202) is used in a voice communication mode, and displays an abbreviated key in case that a PDA is used in the PDA mode. A switching device(302) switches that a power is supplied to the main display(201) and the auxiliary display(202) according to the position of a folder of the PDA or a mode selection switch of a user. A keypad is composed in the outside of the folder for inputting a telephone number.
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