Networks

Networks

1. Advantages

   • Continuous use
   • Anytime anywhere
   • One storage system
   • Same account for any computer

2. Disadvantages

   • Malware
   • Viruses can infect every computer

3. Typologies

   • Bus
     • Advantages
       • Cheap to install
     • Disadvantages
       • High chance of breaking, collisions.
   • Star
     • Advantages
       • Fast
       • Easy to add new computers.
       • Low chance of catastrophic failure
     • Disadvantages
       • Expensive
       • Failure of the switch takes down the network
   • Ring
     • Disadvantages
       • If the wires break, the whole system goes down
     • Advantages
       • Cheap to install
       • No collisions - only one computer is transmitting on each cable

4. Ip address

   • Every device on the internet has a unique IP address.
   • The IP address is included in a data packet.
     • \It can be sent to wrong computer

5. The internet

   • It is a WAN network
   • Has multiple IP adresses
   • To join it, you need wifi which connects it to a node of the internet.
   • It is a mesh topology which sounds like mess and has scattered devices
     • Its similar to a star topology
   • The data sending to the devices are packets
     • in order to not send to the wrong one, it uses the ip adress