To provide a digital camera by which data are sent/received to/from a plurality of external devices through its one common terminal and to provide a connection cable.

When a designated number of an external device 200 by the user is matching an external device number included in an input output instruction, an interface 12 sends/receives a signal to/from a data line corresponding to each line of a data bus 20 of the digital camera based on cross-reference of a data cross reference means 121 that cross-references each line of the data bus 20 of the digital camera and each data line from each external device (figure a). Or an external device discrimination means that discriminates an external device 20 depending on a type of a cable connecting to a digital data common terminal section 18 and the result (device number) is made in matching with the device number of the external device included in the input output instruction.