Ethernet

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Ethernet ( EE-thər-net) is a family of wired computer networking standards designed for (but not limited to) local area networks (LAN), access networks, and metropolitan area networks (MAN). It was commercially introduced in 1980 and first standardized in 1983 as ECMA-82 and shortly after as IEEE 802.3. It is an example of an open standard. Ethernet has since been refined to support higher bit rates, a greater number of nodes, and longer link distances, but retains much backward compatibility. Over time, Ethernet has largely replaced competing wired LAN technologies such as Token Ring, FDDI and ARCNET. The original 10BASE5 Ethernet uses a thick coaxial cable as a shared medium. Its immediate successor 10BASE2 uses a thinner and more flexible cable that is both less expensive and easier to use. More modern Ethernet variants use twisted pair and fiber optic links in conjunction with switches. Over the course of its history, Ethernet data transfer rates have been increased from the original...

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