| 摘要 |
PURPOSE: A computer with an external device connecting terminal controlling switch is provided to prevent a phenomenon that a unnecessary input signal or a unnecessary output signal are delivered. CONSTITUTION: Each of external device connection terminals(11a~11f) of a connection terminal unit(10) pass through a plurality of controlling switches(30a~30f) for an output signal sending block. The controlling switches for the output signal sending block control signals which are inputted or outputted to the connection terminals with on/off. An on/off lamp(40) is installed in the controlling switches for the output signal sending block for displaying an on/off state of the controlling switches for the output signal sending block. |
