As is the case for businesses, there are economic incentives in the home for peripheral and file sharing, and shared Internet access. Businesses are long accustomed to constructing Local Area Networks to address these needs. But make no mistake. Even though industry standard Ethernet is now used in millions of LAN s, businesses construct LANs. By and large, the wiring businesses use for LANs is different from that used in homes for telephone service and extensions, and is optimized to convey digital data signals alone.
Care is taken to structure wiring to assure that business LANs to operate efficiently.
Hubs, repeaters, switches and other devices are often required to connect PCs and other networked devices. Rewiring or adding separate and structured wiring is not a practical solution for home networking, and it may not be practical for many small business needs as well. It's expensive and too complex for the average homeowner or home builder to install and maintain. And it's unnecessary. Nearly every home in the United States is wired with telephone quality copper pairs today.