LAN: Ethernet-1

• From Dec, Intel and Xerox in 1978

• Interconnection of computers through twisted pairs metallic cables (10baseT)

• Computers are connected to hubs, themselves interconnected in a tree structure

• The signal emitted by a computer is propagated to all computers by the hubs

• The protocol used to share the media is: CSMA/CD: Carrier Sense Multiple Access/ Collision Detection

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