network

network

1. network advantages

   • sharing devices such as printers save money
   • licences are more likely to be cheaper than buying several standalone licences
   • files can be easily shared by users
     • network users can communicate by email and instant messages

2. network disadvantages

   • could be hacked
   • could get viruses
   • flexing access

3. bus topology

   • bus topology disadvantages
     • the entire network would shut down if one cable broke
     • there is a danger of getting hacked
     • it can be expensive
   • advantages
     • fast(low chance of collisions)
     • its easy to handle and control
     • it requires more cables to connect devices
     • low chance of catastrophic failure

4. ring topology

   • advantages
     • the data transmitsion is fast
     • compared to the bus topology the ring topology is better at doing things
     • the confruguation makes it easier to identify faults

5. ip address

   • An ip address is a unique value assigned to every computer on a network used to identify it
   • messages on a network have an ip address attached which is how a computer knows whether or not to keep the message
   • when a computer is added to a network it is assigned an ip address
   • computers on a network also need an address to identify them
   • an ip adress is a 32-bit binary value this means its made up of 32 1s and 0s
   • while a binary is perfect for a computer to use,its a pain for humans to use, so we convert it to a binary to a decimal 8 bits at a time
   • in 1983 the concept of a network with more than 4 billion computers on it was laughable