network

network

1. advantage

   • communicate with the world
   • easier to share infomation
   • consistant user experience
   • you have access to past files

2. type of network

   • LAN
     • local area network
     • a network contained
     • in a single geographical location or organisation
   • WAN
     • wide area network
     • a network that spans a large geographical area or multiple organoisations

3. disadvantages

   • easier to hack all computers
   • viruses can spread
   • cost is higher
   • there is a lack of independence

4. topologies

   • bus topology
     • ADVANTAGES
       • cheap to install
     • DISADVANTAGES
       • high chance of catastrophic failure
       • lots of collisions
       • slows down as more computers are added
   • ring topology
     • ADVANTAGES
       • cheap to install
       • no collision (fast)
     • DISADVANTAGES
       • high chnace of catastrophic failure
       • difficult to expand
   • star topology
     • DISADVANTAGES
       • expensive
       • depends on a switch
     • ADVANTAGES
       • no collisions (fast)

5. IP address

   • a unique value assigned to every computer on a network
   • some run their own mini network
   • messages on a network have an IP address