Abstract: The invention easily photographs a subject from plural directions collectively. When a picture photographing instruction and a moving picture photographing instruction are inputted in a master digital still camera 3 set as a master of photographing for a subject 2, the invention transmits picture photographing instruction data D13 and moving picture photographing instruction data D18 to slave digital still cameras 4A to 4N, subjects the subject 2 to picture photographing and moving picture photographing according to the picture photographing instruction data D13 and the moving picture photographing instruction data D18 with the slave digital still cameras 4A to 4N, and generates and records slave picture-photographed image data D25 and slave moving-picture-photographed image data D26 corresponding to a photographed image of the subject 2.

Abstract: The invention easily photographs a subject from plural directions collectively. When a picture photographing instruction and a moving picture photographing instruction are inputted in a master digital still camera 3 set as a master of photographing for a subject 2, the invention transmits picture photographing instruction data D13 and moving picture photographing instruction data D18 to slave digital still cameras 4A to 4N, subjects the subject 2 to picture photographing and moving picture photographing according to the picture photographing instruction data D13 and the moving picture photographing instruction data D18 with the slave digital still cameras 4A to 4N, and generates and records slave picture-photographed image data D25 and slave moving-picture-photographed image data D26 corresponding to a photographed image of the subject 2.

Abstract: A memory card with a tilt sensor is inserted into a personal digital assistant (PDA). When the PDA is tilted back and forth, the tilt sensor detects a tilt angle and outputs the tilt angle to an A/D converter. The A/D converter converts the tilt angle into digital data and supplies the digital data to a signal controller. The signal controller converts the format of the tilt data (digital data) into a communication format processable by the PDA in which the memory card is installed. The signal controller outputs the converted data to the PDA through an input/output interface. Accordingly, the PDA can control display of a game screen in accordance with the tilt data supplied from the memory card. A user who used to play the game using key input can now cause the PDA to function as a more interesting game machine.