| 摘要 |
FIELD: information technology. ^ SUBSTANCE: electronic device connectable to an external device is disclosed. An interface substrate is detachably connected to a main substrate. A first interface is installed on the interface substrate, and the first interface is connectable to the external device. A second interface is installed on the main substrate, and the second interface is connectable to the external device. A selection module selects one interface from the first interface on the interface substrate and the second interface on the main substrate. A communication device communicates with the external device through the interface selected by the selection module. At least one of the first interface and the second interface is configured to detect a connection state to the external device. The selection module selects an interface which is designated or preferentially selects an interface which detects a connection to the external device. ^ EFFECT: high efficiency of connecting electronic devices to external devices. ^ 16 cl, 8 dwg |
