A typical home has an AC outlet in most every wall. And many home devices including PCs are already connected to the powerline. These factors make powerline a very convenient way to network devices in the home. In the past year, several companies have begun shipping, or have announced, powerline-based data networking products. Coax Cable TV wiring, while not as ubiquitous as either phonelines or powerline, provides another way for homeowners to network PCs and other devices.
Cable modems are an increasingly popular means for PC's to attach at high speeds, to the Internet.
And, coax provides an especially good way to deliver a PC's screen and audio content to an alternative output device, such as a TV, but can also be used for data networking as well. HomeRF Another approach to no new wires networking is to eliminate the wires altogether. Intel is an active member of the HomeRF Working Group, which is working to establish an open industry specification for unlicensed RF digital communications for home PCs and consumer devices. Home RF supports both data networking as well as six channels of voice, with bandwidth dynamically allocated between the two. Infrared Infrared is another wire-free technology for home networking.