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What is the Internet, and how does it work?
Updated: 09-May-2025

The Internet is a global system of interconnected computer networks that enables users to share information and communicate. It operates through a combination of hardware (like routers, servers, cables) and software protocols (like TCP/IP) that allow different devices to communicate.

  • Definition: The Internet is a network of networks, linking millions of private, public, academic, business, and government networks worldwide.

  • How it works: Devices connect to the Internet via Internet Service Providers (ISPs), using protocols to communicate.

  • TCP/IP Protocol: Ensures data is broken into packets and transmitted correctly across networks.

  • DNS (Domain Name System): Translates human-friendly domain names (like google.com) into IP addresses.

  • Data Transmission: Packets travel through routers and servers to reach their destination.

  • Client-Server Model: Clients (users) request services, and servers provide responses (e.g., web pages).

  • End Result: Users can browse websites, send emails, stream videos, and more.

Thus, the Internet is not a single entity but a vast digital infrastructure governed by global standards and protocols, allowing seamless data exchange.

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