NETWORKS

NETWORKS

1. disadvatages

   • its expensive
   • if there is a code in the software that has gone wrong it effects every computer
   • malicious soft wares such as viruses can easily travel through all the computers

2. types of network

   • LAN
     • Local area network
   • WAN
     • wide area network

3. Advantages

   • if you change your password on one computer then they will all change
   • a saved file will save on every computer
   • you are able to print, use email, and thge internet from any computer in the school

4. IP Adress

   • we have an IP Address so that a message can get to the intended person/computer.
   • we have them so that we can easily access messages and they can be sent to the correct computer

5. topologies

   • bus
     • all computers are connected to a single wire
     • advantages
       • messages travel quickly
       • its is extremely cheap as only one wire is needed
     • disadvantages
       • there is a high chance of catastrophic failure, as if the single cable broke all computers would shut off
   • ring
     • all computers are connected in a loop
     • advantages
       • communication travels in one direction so no chance of messages getting stopped
       • cheap to install
   • star
     • all computers are connected to a single switch
     • advantages
       • if you needed to turn all computers off then you could easily do so
       • one wire disconnects then it will not effect any of the others
     • disadvantages
       • if the switch broke all the computers would render useless