Abstract: A computer system comprises a receiver and a read-write medium. The receiver is used to receive a remote control signal from a remote controller. The read-write medium is applied to the computer system, and an operating software is stored therein. The computer system can analyze the remote control signal via executing the operating software. The computer system can select and execute some application programs in the computer system or change hardware settings according to the remote control signal.

Abstract: A reel device is disposed inside an electronic product, such as computer host, laptop, etc. The reel device comprises a wire winder, a transmission cable, a signal terminal, and a connector. The transmission cable is reeled inside the wire winder. The signal terminal joined one end of the transmission cable is connected on the circuit board of the electronic product to be signal transmission channel. A connector joined to the other end of the transmission cable is exposed outside of the wire winder. The housing of the electronic product further has an opening. The connector and the transmission cable can be pulled out of the electronic product, and then the connector is plugged into a connector of another electronic product to transmit signals.