Computer_Networks_Presentation (3).pptx ppt

It is the notes of computer networking class 12

1. Computer Networks Overview of Computer Networks

2. Network Topology 1. Star Topology 2. Bus Topology 3. Ring Topology 4. Mesh Topology 5. Tree Topology

3. Circuit Switching vs Packet Switching 1. Circuit Switching: Establishes a dedicated path between sender and receiver. 2. Packet Switching: Data is broken into packets and each packet may take a different path.

4. Types of Network 1. LAN (Local Area Network) 2. WAN (Wide Area Network) 3. PAN (Personal Area Network) 4. MAN (Metropolitan Area Network)

5. Network Devices 1. Hub 2. Switch 3. Router 4. Repeater 5. Bridge

6. Hub A hub is a basic networking device that connects multiple computers or other network devices.

7. Switch A switch is a device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.

8. Router A router is a device that forwards data packets between computer networks.

9. Repeater A repeater is a network device used to regenerate or replicate a signal.

10. Bridge A bridge is a device that connects two or more network segments, increasing the size of the network.

11. Peer-to-Peer Network In a peer-to-peer network, each computer has equal status and can initiate communication.

12. Client-Server Network In a client-server network, clients request services and resources from a centralized server.

13. Difference between Peer-to-Peer and Client-Server 1. Peer-to-Peer: No central server, each peer can act as client and server. 2. Client-Server: Central server provides services to clients.

14. Advantages of Computer Networks 1. Resource Sharing 2. Communication 3. Data Security 4. Scalability 5. Reliability

15. Conclusion Computer networks are essential for modern communication and resource sharing.