Ethernet is the most commonly used local-area networking (LAN) technology. It offers a very flexible and low cost network system.
Ethernet was initially developed by Xerox in the late 1970s. It was refined in 1980 by Digital Equipment Corporation, Intel, and Xerox (DIX). Ethernet II was released in 1985. The IEEE (Institute of Electrical and Electronics Engineers) Project 802 used Ethernet Version 2 as the basis for the 802.3 network standard.
Ethernet moves data between computers over a wide variety of physical media including twisted-pair wire, coaxial cable, and fiber optic cable. All hosts are connected to a cable where they compete for network access using a Carrier Sense Multiple Access with Collision Detection (CSMA/CD) paradigm.
Ethernet established a 10-Mb/s standard for LANs, a standard which new Ethernet hardware has raised to 100-Mb/s.