Abstract: An electronic device is disclosed. The electronic device comprises a circuit board, a memory part comprising a plurality of first memory chips mounted on the circuit board, a socket part comprising a plurality of terminals electrically connected to a memory module which comprises a plurality of second memory chips, a memory controller for controlling the operation of the plurality of first memory chips and, when the memory module is connected to the socket part, controlling the operation of the plurality of first memory chips and the plurality of second memory chips, a conductive pattern comprising a control line which sequentially connects, from the memory controller, one or more of the plurality of terminals on the socket part and the plurality of first memory chips, and a capacitive element connected to the control line at a preset position between the one or more terminals on the socket part and the memory controller.

Abstract: An electronic device is disclosed. The electronic device comprises a circuit board, a memory part comprising a plurality of first memory chips mounted on the circuit board, a socket part comprising a plurality of terminals electrically connected to a memory module which comprises a plurality of second memory chips, a memory controller for controlling the operation of the plurality of first memory chips and, when the memory module is connected to the socket part, controlling the operation of the plurality of first memory chips and the plurality of second memory chips, a conductive pattern comprising a control line which sequentially connects, from the memory controller, one or more of the plurality of terminals on the socket part and the plurality of first memory chips, and a capacitive element connected to the control line at a preset position between the one or more terminals on the socket part and the memory controller.

Abstract: An image forming apparatus includes a board which controls an image forming job processor and an image former which performs an image forming job according to a control by the board. The board may include a plurality of power connectors for providing power, a plurality of first signal connectors continuously disposed such that they are spaced apart by a first distance in an exterior angle of the power connectors, a plurality of second signal connectors disposed such that each of them is spaced apart from one another by two or more times the first distance in an exterior angle of the first signal connectors, and a chip including a plurality of third signal connectors continuously disposed such that they are spaced apart by the first distance in an exterior angle of the second signal connectors.

Abstract: An image forming apparatus includes a board which controls an image forming job processor and an image former which performs an image forming job according to a control by the board. The board may include a plurality of power connectors for providing power, a plurality of first signal connectors continuously disposed such that they are spaced apart by a first distance in an exterior angle of the power connectors, a plurality of second signal connectors disposed such that each of them is spaced apart from one another by two or more times the first distance in an exterior angle of the first signal connectors, and a chip including a plurality of third signal connectors continuously disposed such that they are spaced apart by the first distance in an exterior angle of the second signal connectors.

Abstract: A portable computer including a display unit, and a video processor generating and supplying a first video signal to the display unit, includes a video adaptor outputting the first video signal to the outside, and receiving a second video signal from an external input source, and a control unit for supplying the second video signal to the display unit when the external input source is connected to the video adaptor. Thus, the present invention provides a portable computer and a control method, which can receive a video signal from an external input source through one existing output port for outputting a video signal without adding a separate input port.

Abstract: A portable computer including a display unit, and a video processor generating and supplying a first video signal to the display unit, includes a video adaptor outputting the first video signal to the outside, and receiving a second video signal from an external input source, and a control unit for supplying the second video signal to the display unit when the external input source is connected to the video adaptor. Thus, the present invention provides a portable computer and a control method, which can receive a video signal from an external input source through one existing output port for outputting a video signal without adding a separate input port.