Power-line networking is one of several ways to connect the computers in your home. It uses the electrical wiring in your house to create a network. Power-line networking is based on the concept of "no new wires." The convenience is even more obvious in this case because while not every room has a phone jack, you will always have an electrical outlet near a computer. In power-line networking, you connect your computers to one another through the same outlet. Because it requires no new wiring, and the network adds no cost to your electric bill, power-line networking is the cheapest method of connecting computers in different rooms.