A group of wires that are enclosed in a protective tube. Usually this is an organized set of wires that correspond to specific pins on a 9- or 25-pin connector located at each end. A cable is used to connect peripheral devices to each other or to another computer. In remote computing, this can refer to a cable that is used to connect a computer to a modem, or a cable that connects two computers directly, which is sometimes called a null modem cable.