Networks

Networks

1. 2 or more computers linked togather

   • for communicating
   • sharing

2. The World Wide Web

   • a collection of webpages
   • stored on computers all over the world
   • no central storage
     • no owner

3. URL

   • it is a web addres
     • all are unique
   • google will prompt
   • www.bbc.co.uk/news
     • .uk
       • .fr
       • .es
       • .de
       • .com
       • .org
       • gov
   • HTTP
     • HyperText Transfer Protocol
       • HTTP defines the rules used by web browsers and servers to exchange information
       • If everyone follows the same set of rules, everything works

4. Data Packages

   • Data transmitted over the Internet is broken down into smaller chunks or packets to be sent
   • The destination and sender’s addresses are added
   • Each packet is numbered, sent separately, then put in the right order again at the other end

5. connectivity

   • Deep Sea Cables
     • placed close to shoe and in shallow areas
     • remote operated plough will bury the cable
       • the denser the land the less deep they need to bury the cable
     • different colours show direction of flow