Networks

Networks

1. Types of networks

   • Lan
     • Local area network
       • Contained in a single geographical place
   • Wan
     • Wide area network
       • Spans a large place

2. Topolegies

   • Bus
     • Advantages
       • Cheap to install
     • Disadvantages
       • High chance of failure
       • Lots of collisions
       • Slow , as more computers are added
   • Ring
     • Advantages
       • Cheap to install
       • No collisions
     • Disadvantages
       • High chance of failure
       • Difficult to expand
   • Star
     • advantages
       • Low chance of failure
       • No collisions
     • Disadvantages
       • Expensive
       • Depends on a switch

3. IP Address

   • A unique value assigned to every computer
   • They are used to identify each different computer

4. Internet

   • packets
     • data split up in to small packets
   • rooting
     • The root the data is going to take
   • mesh topology
     • where a node is connected to more than 1 node