Tle Advantages and Disadvantages 4th

Cards (13)

  • Computer Networks
    Classified according to geographical distribution of computers in the network
  • Local Area Network (LAN)

    • Connects computers inside a room or several rooms in a building
    • Examples: school, university, small scale business or an office
  • Metropolitan Area Network (MAN)

    • Combination of several Local Area Networks which covers less than 16 miles
    • Examples: banking networks, institutes and universities with branches
  • Wide Area Network (WAN)

    • Covers a wide area, within or outside a country
    • Best example: the Internet
  • Network topology
    The pattern of connection in designing computer network
  • Types of Network Topologies
    • Star Topology
    • Bus Topology
    • Ring Topology
    • Tree Topology
    • Mesh Topology
  • Star Topology
    • Centralizing a switch/hub and computers
  • Bus Topology
    • All connections established through a main cable (backbone)
    • Limited number of computers can be connected
    • Fewer cables required
  • Ring Topology

    • Computers positioned in a ring/bangle and connected through cables
    • Data/information move in a circular manner
    • Breakdown of one computer/cable can lead to breakdown of entire network
  • Tree Topology
    • Characteristics of both bus and star topologies
    • Several star topologies connected to a bus backbone cable
    • Ability to control each network individually
  • Mesh Topology

    • All computers connected with each other
    • Complex connection pattern, costly and difficult to control
    • Breakdown of one computer does not affect other connections
  • Benefits of Networking
    • Data and information can be shared between computers
    • Less storage space
    • Ability to share resources
    • Ability to control central software
    • Ability to connect at any where and at any time
    • Security
    • Electronic mail
  • Disadvantages of Networking
    • Possible security issues
    • Breakdown of network
    • Virus
    • Computer break downs
    • Training requirements