• LAN hardware
  • access methodology
    • since more than on PC user on a network will probably put messages on the network at the same time, there is a need to work out a way to share the media. The media-sharing methods are called access methodologies
      • CSMA/CD access methodology
      • token passing methodology
  • logical topology
    • the way in which a PC user on a network passes data to another PC user is called logical topology
      • sequential logical topology
      • broadcast logical topology
  • physical topology
    • the way in which PC are physically connected to one another
      • bus physical topology
      • ring physical topology
      • star physical topology
  • _Ethernet
    • _{Robert Metcalfe (founder of 3COM corporation) invented Ethernet}
    • _{access methodology is CSMA/CD}
    • _{logical topology is broadcast}
    • _{physical topology is usually star}
    • _{note advantages/disadvantages on page 38}
  • _{Token ring ( a topology standard)}
    • _{Olaf Soderblum (IBM)}
    • _{access methodology is token passing}
    • _{logical topology is sequential}
    • _{physical topology is usually star}
    • _{note advantages/disadvantages on page 41}
  • _{File Server performance (page 44)}
• _{LAN software}
  • _{client/server verses peer-to-peer (see list on page 54)}
  • _{spans the top five layers of the OSI model}