Wired

• Wired way of connection is call the ethernet
• Ethernet the most widely installed local area network (LAN) technology
• Ethernet and fibre optic cables are examples of wired connections
• Ethernet refers to a family of networking rules or protocols widely used in Local Area Networks
• how devices should format data ready for transmission between computers on same network

  • (similar to polite human conversation) nodes will wait until the connection is quiet before attempting to transmit
  • 2 nodes attempting to transmit simultaneously will stop and each wait a random period before attempting again
• Ethernet systems divide data into frames (similar to Internet packets)
• Each frame (divided data) contains source and destination MAC addresses and error checking data
• Faulty frames containing transmission errors are dropped or resent