PORTABLE TERMINAL, FUNCTION LIST PROVIDING METHOD USED FOR THE SAME, AND ITS PROGRAM

When a user selects a function, a data collecting system (16) of a portable terminal (1) collects an identification number assigned to the selected function, and registers the collected identification number in a management table (122), thereby storing the number in a memory (12). For example, when the user inputs an instruction to an input unit (15), an identification number corresponding to the selected function is generated and transmitted from the input unit (15) to a controller (13), and the controller (13) having received the identification number executes the corresponding function. The data collecting system (16) collects identification numbers thus transmitted, and registers them in the management table (122).