Computer Networks

Computer Networks

1. What is a Network

   • A Network is two or more computers that are linked together.
   • Advantages of a network
   • Disadvantages of a netwrok
   • Types of Network
     • LAN (Local Area Network)
     • WAN (Wide Area Network)

2. Network Topologies

   • The Bus
   • The Star
   • The Tree

3. The Internet

   • Advantages of the Internet
   • Disadvantages of

4. The Intranet

5. Common Network Devices

   • Switches
   • Hubs
   • Routers
   • Bridges
   • Proxy Server

6. Problems of confidentiality of data

   • Authentication techniques

7. Methods of Communication

   • Email
   • Fax
   • Videoconferencing
     • Advantages of Videoconferencing
     • Disadvantages of Videoconferencing