Abstract: A method is provided for controlling the input of characters and numbers using function switches installed on a mobile digital device. In particularly, a method of controlling a mobile digital device so that a user can input characters and numbers to the mobile digital device, which includes a display panel and input switches that are arranged around the display panel is provided. The method includes: displaying icons for inputting characters that correspond to the input switches on the display panel, and when an input switch is pressed, receiving a signal related to the icon that corresponds to the pressed input switch.

Abstract: A digital camera and method of controlling a digital camera is provided. In the method, when the user enters data of an electronic mail address book in the menu mode, the data of the electronic mail address book is received and stored. When the user selects a recipient from the electronic mail address book in the menu mode, recipient information regarding the selected recipient is stored. When an image file is acquired through photographing in the photographing mode, the acquired image file, storage path information regarding the stored image file, and the recipient information are stored. When the digital camera is connected to a communication network in one of the photographing and menu modes, the image file is transmitted to the recipient according to the storage path information and the recipient information.