Ethernet
A network communications system developed and standardized by Digital Equipment Corporation, Intel, and Xerox using baseband transmission, carrier sense multiple access/carrier detect (CSMA/CD) access, logical bus topology, and coaxial cable. The successor IEEE 802.3 standard provides for integration of Ethernet into the Open System Interconnection (OSI) model and extends the physical layer and media with repeaters and implementations that operate on fiber optic cable, broadband, and unshielded twisted pair.