A computer network connects multiple computers together to share information and resources. It consists of network nodes like computers and devices, links that connect them using wired or wireless transmission media, and a topology that defines the arrangement of the entire network structure. Communication protocols like Ethernet and Wireless LAN standards govern how data is transmitted and received over the network.

1. Computer Network

2. What is Computer Network?
A computer network is a system in which
multiple computers are connected to each
other to share information and resources.

3. Network Topology
Network
Links
Network
Nodes
Network
Structure
Network Topology
A network topology is the arrangement of a network.

4. Network Links
Network Links
Wired
Technologies
Wireless
Technologies
Exotic
Technologies
The transmission media used to link devices to form a
computer network.

5. Network Nodes
Network Links
Network
interfaces
Repeaters
and hubs
Bridges Switches Routers Modems Firewalls
A node is either a redistribution point or a
communication endpoint.

6. Network structure
Network structure
Common
layouts
Overlay
network

7. Communication Protocols
Communication
Protocols
IEEE 802
Ethernet
Wireless
LAN