Information apparatus and menu display method

An information apparatus placed in a vehicle, comprising:

• a vehicle state detection unit that detects whether the vehicle is in motion or stopped;
• a display control unit that controls a signal output to a display such that information containing operation items related to various functions provided by the information apparatus is displayed on the display;
• an input reception unit that receives an operation with respect to the operation items displayed on the display by a user;
• an execution unit that executes a command with respect to the operated operation item when the input reception unit receives the operation with respect to the operation item;
• and
• an identification unit that identifies a frequency of use of each of the operation items by classifying the operation items according to both a screen mode currently set for the display and whether the vehicle is in motion or stopped;
• wherein, the display control unit controls to display a prescribed menu on a screen including selected items from the operation items on the display;
• wherein, when the vehicle is in motion, the prescribed menu contains one or more operation items which are identified by the identification unit that their frequency of use during the vehicle is in motion is high;
• wherein, when the vehicle is stopped, the prescribed menu contains one or more operation items which is identified by the identification unit that their frequency of use during the vehicle is stopped is high;
• and
• wherein the identification unit periodically updates the frequency of use of each of the operation items information such that use instances of each operation item older than a predetermined time period are not included in the frequency of use.