Overview
A computer network is a digital telecommunications network that allows nodes to share resources. In computer networks, computing devices exchange data with each other using connections (data links) between nodes. These data links are established over cable media such as twisted pair or fiber-optic cables, or wireless media such as Wi-Fi.
Key Components
- Nodes: Devices such as computers, servers, and smartphones.
- Links: The communication channels connecting nodes (wired or wireless).
- Protocols: Rules that define how data is transmitted and received (e.g., TCP/IP).
Benefits
- Resource Sharing: Sharing printers, storage, and applications.
- Communication: Email, instant messaging, and video conferencing.
- Data Centralization: Storing data in a central location for easy access and backup.