Abstract: A portable computer including a computer body having a main board and a display apparatus rotatably installed on the computer body. The portable computer also includes a radio communication module provided in a part of the main board formed with a through hole for radio communication and a radio antenna provided in the display apparatus that sends and receives electric waves transmitted to and from the radio communication module. A connector, coupled to the through hole, has a first connection part and a second connection part, wherein a cable member connected to the radio antenna may be detachably connected to the connector and a cable member connected to the radio communication module is also detachably connected to the connector. With this configuration, a radio antenna provided in a display apparatus and a radio communication module on the main board can be connected simply and easily.