1.4 Wired and Wireless Networks.

1.4 Wired and Wireless Networks.

1. Arpanet.

   • First ever network.
     • Was created by the USA in 1969.

2. Why do we have networks?

   • Share resources (Hardware AND Software)
   • quick and efficient.
   • Stores data.

3. DPA.

   • Data Protection Act.
     • First statement made in 1984.

4. 8 Principles of the Act.

   • FLAAKSTS.
     • Floods Locks Are Always Kept Stylish Through Straighteners.
       • Lawfully obtained
       • Accurate.
       • Kept no longer than required.
       • Secured.
       • Transferred outside EU or similar.

5. Internet is HARDWARE.

   • World Wide Web is SOFTWARE.

6. LAN.

   • Local Area Network.
     • Small geographical area.
       • belongs to the owner.

7. WAN.

   • Wide Area Network.
     • Large geographical area.
       • Can connect as client.

8. Ethernet cables .

   • run between 100 to 1000 MBps.
     • Max distance 185M otherwise it will lose signal.

9. Client server.

   • The network relies on a central server.
     • Backups are easily managed on a client server - can be done centrally. on a system.
       • Server stores user account details and files.
       • Receives and processes requests from "Clients" (workstations).

10. PeerToPeer.

    • No server. All computers have equal status.
    • All computers are responsible for backing up their own files.