networks

networks

1. types of networks

   • LAN
     • Local area network
   • WAN
     • Wide area nework
   • PSN

2. advantages

   • you can log into any computer with any password
   • files are on each computer

3. disadvantages

   • expensive
   • difficult
   • malware

4. Topologies

   • BUS
     • A single wire that can have catostrophic faliure
     • Slow
     • Cheap
   • RING
     • A single wire that goes round in a ring shape connecting all computers
     • Cheap (ish)
     • No collisions
   • STAR
     • Expensive
     • Low chance of catostrophic faliure
     • Fast
     • Easy to add computers

5. IP adress

   • IP adress is a 32 bit binary value
     • In the past it was expected to have six computers
       • But now there is over 4 billion
         • Each IP adress is unique