Network

Network

1. Advantages

   • Share files
   • Share resources
   • Share logins
   • enforce policies
   • Printers connected
   • log in to all computers in the network

2. Disadvantages

   • Expensive
     • extra hardware can cost alot
   • More room for error
     • If something goes wrong it can affect every computer
   • Difficult
     • It requires technical experties
   • Malware
     • Viruses and other malicious software can spread through the network

3. Types of Network

   • LAN
     • A Network contained in a single geographical location or organisation
     • Local area Network
   • WAN
     • Wide area Network
     • Multiple LAN's

4. Bus

   • The Network consists of a single cable
   • Advantages: Cheap to install-only one cable
   • Disadvantages: High chance of catastrophic failure. Lots of collisions. Slows down when more computers are added

5. Star

   • All connected to a central switch
   • Advantages: Fast. Easy to add more computers. Low chance of catastrophic failure.
   • Disadvantages: Expensive. Failure of the switch will take down the network.

6. Ring

   • Connected to eachother in a ring
   • Advantages: Cheap to install. No collisions.
   • Disadvantages: High chance of catastrophic failure. Hard to add other computers.

7. 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.

8. Internet

   • The internet is on a mesh topology