Abstract: The present invention provides a mobile terminal and a function control method thereof that can appropriately set or release an operation mode in accordance with a situation of a user. A mobile terminal includes an opening/closing sensor 18 that detects whether the mobile terminal is in an opened state or a closed state, an acceleration sensor 11 that detects acceleration and a posture of the mobile terminal, and a control unit 12 that restricts an execution of a specific function in accordance with the detection result of the opening/closing sensor 18 and releases a restriction of at least a portion of the restricted specific function in accordance with the detection result of the acceleration sensor 11.

Abstract: The degree of importance and the origin of a picture image attached to an e-mail can be known without a complicated operation. A communication terminal receives an e-mail and image data attached to the e-mail. “Mail information” which is information contained in the received e-mail and which is information for understanding a specific content of the e-mail, is stored. The mail information extracted from the e-mail to which the image data is attached, is added to the image data as metadata. A specific browsing folder storage unit for storing the image data to which the mail information is added as the metadata, is prepared. When the image data is browsed, the mail information added as the metadata can be also browsed, by referring to the image data stored in the specific browsing folder storage unit.

Abstract: The present invention provides a mobile terminal and a function control method thereof that can appropriately set or release an operation mode in accordance with a situation of a user. A mobile terminal includes an opening/closing sensor 18 that detects whether the mobile terminal is in an opened state or a closed state, an acceleration sensor 11 that detects acceleration and a posture of the mobile terminal, and a control unit 12 that restricts an execution of a specific function in accordance with the detection result of the opening/closing sensor 18 and releases a restriction of at least a portion of the restricted specific function in accordance with the detection result of the acceleration sensor 11.

Abstract: There is provided a computer system which enables a portable terminal to be made smaller, lighter and less expensive, in which the portable terminal can share data with a host computer such as a personal computer installed in an office or the like so that data management can be centralized, and as long as any stand-alone application software is installed in the host computer, it can use the application software freely at any time.