Network

Network

1. Advantages

   • You don't have to go to a certain computer to do something
   • Easier to share data
   • Not a risk of losing work

2. Disadvantages

   • Cost
     • Expensive to Set-up
     • Expensive to add more computers
   • Security
     • Viruses and Malware
     • Lack of Robustness
     • Spreads through the whole Network
   • Hard to manage
     • You need to manage who is allowed on the network and who has control.
     • You need to make sure every app is secure
     • You need to protect the whole network and each computer from viruses
     • You need to control the email network and who is on it

3. WAN

   • Wide Area Network
   • A network in a large area
   • Uses in real life
     • PlayStation network
     • Internet

4. LAN

   • Local Area Network
   • A Network contained in a single Geographical Area
   • Uses in real life
     • Schools
     • small work places
     • Libraries
     • E-sport events

5. Topologies

   • Star
     • Advantages
       • Low chance of failure
       • No collisions
     • Disadvantages
       • Expensive
       • Depends on a switch
   • Bus
     • Advantages
       • Cheap to install
     • Disadvantages
       • High chance of failure
       • High chance of collision
   • Ring
     • Advantages
       • Cheap to install
       • No collisions
     • Disadvantages
       • High chance of catastrophic failure
       • difficult to expand

6. IP Addresses

   • The Internet
     • When IP addresses were first made, the max number of computers there could be was just over 4 billion
     • So there could be more than 4 billion, they made it so each organisation or house had it's own IP Address and there is internal addresses for each computer in the house
     • The biggest IP address there can be is 255.255.255.255