Abstract: It is the objective of the present invention to easily change between an image display application and the viewing of a program for a digital television, and to improve the usability of the television for operating an image display application. The display change list for a (channel) Up/Down key of a remote controller is dynamically altered so that, during the execution of an image display application, an application screen is displayed by using the Up/Down key. Further, when a memory card is loaded immediately after the television is powered on, a display application can be automatically activated. Furthermore, while a user is watching the television, the contents of a memory card is displayed on a small window in one part of the screen, and execution of the image application controlled by the user. In addition, no icons are displayed while an important program is on displaying.

Abstract: A film magazine comprised of a cylindrical portion and a pair of end covers is provided with film speed indicating code means. The cylindrical portion of the film magazine is made of metal sheet applied with an insulating coating layer. The surface of the cylindrical portion is selectively provided with non-coated sections for indicating the film speed of the film loaded therein in accordance with a binary code system. The code which indicates the film speed is sensed by a small number of sensing contacts provided in the camera body. The non-coated sections for indicating the film speed are located in the inaccessible area of the film magazine so that the coding sections may not be damaged.