Networks definition

1
Networks (definition)

• Network
• two or more computers
• communicating
• for the purpose of sharing valuable resources
• LAN (local area network) directly linked within
  a small geographic area (campus)
• MAN (metropolitan) implies high speed
  connection (fiber optic)
• WAN (wide) implies tele-communications link
  (phone, microwave, satellite)

2
Internet (definition)

• A technology for linking LANs into WANs
• Links local networks together into an expansive
  global network
• By means of a common communication protocol
• --------------------------------------------------
  -----------
• Protocol a set of rules which allow
  interoperability cross-platform compatibility
• Internet Service Provider (ISP) provides
  dial-up or direct connection to the Internet (for
  a fee)