An optical connector according to the present invention has a ferrule body provided with a fiber positioning hole, a pair of guide holes into which guide pins are inserted, and a connecting end face in which ends of the fiber positioning hole and guide holes open. A plurality of combinational element are arrayed in one line. Internet based data storage systems now offer data storage services at low prices. An input signal is applied to a gate of the transistor, whereby the transistor amplifies the input signal to provide an output signal appearing on the other of the source or drain of the transistor. A power-ring housing portion covers the power-ring subassembly, and has a set of plug apertures allowing appliance power plugs associated with the electrical appliances to plug into the electrical receptacles mounted behind the plug apertures. Using a repository that associates multiple operations with natural language voice commands, multiple selected operations that correspond to the received single, natural language voice command are determined and applied to a user interface.