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However, the hardware keyboard often forces complicated button operations, and there is a lack of portability. Further, the software keyboard takes up a space for display of virtual buttons and causes a strain on a free display area on the screen. Furthermore, when a user performs an input operation by a drug operation or a flick operation on a touch panel, the user needs to move the finger many times for browsing many items, which is a burden to the user. In addition, at the time of picture taking or the like, a user needs to carry out an opera tion with one hand holding the device, which further increases a burden to the user.

On the other hand, if the tilt of the apparatus body is 45 detected by the acceleration sensor or the like and cursor movement or Scrolling on a contents list is controlled based on the detection, although a basic motion can be controlled, fine adjustment when screening screen information is diffi cult …