network

network

1. advantages

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

2. disadvantages

   • could be hacked easily
   • could get viruses
   • resource sharing
   • electronic mail
   • flexing access

3. bus topology

   • advantages
     • it requires more cables to connect devices
     • fast (low chance of collisions)
     • low chance of catastrophic failure( a broken cable only takes out one computer, the rest of the network is fine
     • it is easy to handle and controll
   • disadvantages
     • it can be expensive
     • there is a danger of getting hacked
     • the cable length is limited

4. ring topology

   • advantages
     • the data transmission is fast
     • compared to the bus topology the ring is much better at handling things
     • the confruguation makes it easier to identify faults
   • disadvantages
     • the failure of a single node in the network can cause the whole network to fail

5. ip address

   • computers on a network also need an address to identify them
   • when a computer is added to a network itis assigned an ip address
   • an ip address is a 32-bit binary value this means its made up of 32 1s and 0s
   • while binary is perfect for a computer to use,its a pain for humans to use, so we convert it to binary to decimal 8 bits at a time
   • in 1983, the concept with more than 4 million computers on it was laughable