Computer Networks

Computer Networks

1. Advantages

   • You can use any computers connected to the network.
   • No matter what computer you use on the Network you can always access your files
   • You can print

2. Disadvantages

   • Expensive
   • Difficult - it requires a technical expertise
   • if one cable breaks all of the computers on that network won't work anymore
   • Hackers can easily help

3. types of network

   • Ring
   • Star
   • WAN - wide area network
   • LAN - local area network
   • IP adress

4. Bus

   • Disadvantages
     • Data Collision
     • catastrophic failure
   • Advantages
     • Cheap
     • easy to add to

5. Ring

   • Disadvantages
     • Data leaks
     • Catastrophic failure
     • If one computer turns off, nothing will get around
   • Advantages
     • one way
     • cheap
     • no collisions

6. Star

   • Advantages
     • no data leaks
     • no failure except switch
     • easy to add new machines
   • disadvantages
     • reliant on the switch
     • very expensive

7. Network Adress

   • Your computer must be connected to the network to have an IP Adress
   • 4,000,000,000 Public ip adresses
   • Not enough public ip adresses so we need private ip adreses