# Computer Network \| Introduction \| CN \| Lec-01 \| Bhanu Priya

- Channel: [Education 4u](https://www.youtube.com/channel/UCKS34cSMNaXaySe2xgXH-3A)
- Published: 2018-04-20
- Source video: [Watch on YouTube](https://youtube.com/watch?v=PwFqQfyv0xM)
- Read on ReadTube: https://www.read.tube/p/videos/PwFqQfyv0xM
- Language: Original (source language)

## Summary

**Computer Networks Connect Devices and Resources**

A computer network is a system in which multiple devices are connected to share information and resources. Its elements can include computers, printers, mobile phones, routers, switches, and servers, connected through wired or wireless links. The arrangement of these elements and links is called a topology, with common forms including ring, star, bus, tree, and mesh. Routers, servers, connection methods, and topologies are basic concepts in computer networking.

A computer network is a collection of communication elements connected through communication links. The elements can include computers, printers, mobile phones, routers, switches, and servers, while the links may be wired, such as optical fiber, coaxial cable, and twisted pair, or wireless, such as radio waves, satellite communication, and microwaves.

The main purpose of connecting multiple computers or other devices is to share information and resources. Through the network, one system can send information to another, allowing connected devices to communicate and use shared facilities.

The arrangement of network elements and their links is called a topology. Devices can be organized in ring, star, bus, tree, or mesh structures, depending on how the elements are connected.

Routers and servers are examples of important network components. Routers connect different parts of a network, while servers are computer systems that provide services or resources to other connected devices. Understanding these devices, connection methods, and topologies forms the foundation of computer networking.