What is Computer Network?
It is a system of interconnected computing devices that share resources and information. It allows computers to collaborate, transfer data, and access shared resources like files, emails, and printers.
These devices—known as nodes—communicate with one another using a common set of rules known as protocols.
Networks allow:
- Sharing files and applications
- Internet access
- Remote system access
- Centralized data management
- Real-time communication (chat, email, video calls)
Basic Components of a Network
https://www.geeksforgeeks.org/physical-components-of-computer-network/
Types of Networks
| Type | Acronym | Scope | Example |
|---|---|---|---|
| LAN | Local Area Network | A small area like a home or office | File sharing between office PCs |
| WAN | Wide Area Network | Large geographical areas | The internet |
| MAN | Metropolitan Area Network | Covers a city-sized region | Cable TV network infrastructure |