A CPU executes various types of processing that can be executed in an information processing device. A communication module executes communication processing conforming to EV-DO and cdma2000 1.times.. A connection terminal is a connector for communicating data to and from an external unit. A switch section can switch between connection of the connection terminal and the CPU and connection of the connection terminal and the communication module. A switch has a function for the user to switch the switch section. A display section mainly displays the processing result of the CPU. A notification section is an LED, etc., controlled by the communication module.