To provide an information processing unit that reconciles portability with operability and facilitates the operation of information review even though the unit is small sized and easy to carry.

The information processing unit has plural input information process contents to be executed based on the numerical information inputted by users manipulation and controls execution of plural input information processes. The information processing unit is designed to execute a selected input process based on the numerical information converted in accordance with the detected amount of movement or inclination of the main body of the unit, and when one of the input information processes is selected, the input operation of numerical information and the selection operation of input information process to be processed based on the numerical information can be made easily, quickly and simultaneously with one hand, and in addition, complex operations such as controlling based on two-dimensional numerical information become possible.