What is Ethernet

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->Ethernet is a family of frame-based computer networking technologies for local area networks (LANs). 


->It defines a number of wiring and signaling standards for the Physical Layer of the OSI networking model as well as a common addressing format.


->Ethernet is standardized as IEEE 802.3. The combination of the twisted pair versions of Ethernet for connecting end systems to the network.along with the fiber optic versions for site backbones, is the most widespread wired LAN technology.


->Ethernet was developed at Xerox PARC between 1973 and 1975.


->Ethernet stations communicate by sending each other data packets, blocks of data that are individually sent and delivered. 


->As with other IEEE 802 LANs, each Ethernet station is given a single 48-bit MAC address, which is used to specify both the destination and the source of each data packet