Abstract: An electronic apparatus having a display function is able to alter the orientation of an image displayed on a display means for displaying images between a first orientation and a second orientation different from the first orientation. A plurality of operating means are provided at positions symmetrical between disposal positions which take the first orientation as a standard orientation and disposal positions which take the second orientation as a standard orientation.

Abstract: An electronic apparatus having a display function is able to alter the orientation of an image displayed on a display means for displaying images between a first orientation and a second orientation different from the first orientation. A plurality of operating means are provided at positions symmetrical between disposal positions which take the first orientation as a standard orientation and disposal positions which take the second orientation as a standard orientation.

Abstract: An electronic apparatus having a display function is able to alter the orientation of an image displayed on a display means for displaying images between a first orientation and a second orientation different from the first orientation. A plurality of operating means are provided at positions symmetrical between disposal positions which take the first orientation as a standard orientation and disposal positions which take the second orientation as a standard orientation.

Abstract: A parameter used in sorting genre is adequately set to improve sorting accuracy. To this end, a music sorter includes a parameter selecting section 160 for obtaining a plurality of candidate genres which are genres to which the music possibly belongs and for selecting a sorting parameter type which is a type of a parameter used for judging the genre to which the music belongs among a plurality of types of parameters which characterize music based on the plurality of candidate genres and a genre judging section 200 for judging either one of the plurality of candidate genres to which the music belongs based on a value of the sorting parameter type of the music.

Abstract: A joystick for a computer game which comprises a stick lever, a trigger button and a function button. In the joystick, when the function button is pressed down while the stick lever is inclined in one of directions or the trigger button is depressed, an operation specified by the inclination direction of the stick lever or by the trigger button can be executed intermittently or continuously, so that, even if the trigger button is operated long, it is possible to enhance the operation of the joystick, to reduce the fatigue of a player and to extend the life of the joystick.