Network

Network

1. Advantages

   • shares logins
     • shares files
       • shares resources
         • such as printers and internet connection.
       • the same files are available whichever computer you use
     • same username or login on every computer on the network

2. disadvantages

   • very expensive
     • increase risks
       • difficulty expertise
         • is needed to set up and maintain a network
       • Problems such as viruses can affect every computer on the network
     • Networks are expensive to set up.

3. types of network

   • LAN-local area network
     • a network that is in a small area or singleorganisation
   • WAN-Wide area network
     • A network that spans a large area or multipleorganisation

4. Topology

   • Bus
     • Advantages
       • cheap to install
     • Disadvantages
       • High chance of catastrophic failure
       • lot of collisions
       • slows down as more computers are added
   • star
     • advantages
       • low chance of failure
       • no collisions
     • disadvantages
       • Expensive
       • Depends on a switch
     • Computers are connected to each other in a ring
   • Ring
     • Advantages
       • Cheap to install
       • No collisions (fast)
     • Disadvantages
       • High chance of catastrophic failurer
       • Difficult to expand

5. IP address

   • A unique value assigned to every computer on a network, used to identify it.
   • Advantages
   • disadvantages

6. Mesh topology

   • advantages
     • It is impossible to break
     • it is globle
   • Disadvantages
     • if one of the lines are blocked then more and more of them could block then you would have to wait for it to download again