Internet

Lesson in the Backend Developer Roadmap · Stage 1: Introduction

Last updated 14 September 2026

What is Internet?

The Internet is a global network of interconnected computers using TCP/IP protocols. Requests travel through ISPs to DNS servers for domain-to-IP translation, then are routed across networks via routers to destination servers. Enables dynamic, decentralized global communication.

Study this in the interactive course See the whole Backend roadmap

Free resources to learn Internet

ArticleHow does the Internet Work?
ArticleThe Internet Explained
VideoHow does the internet work? (Full Course)

Internet: common questions

Can I learn Internet in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Internet in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Internet tutorial for beginners?

It is lesson 2 of 155 in the free Backend roadmap, in stage 1, Introduction. If you are new to Backend, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.