The Internet is a global network of connected computers that communicate with each other.
👉 Simple meaning:
Internet = Computers talking to other computers
Think of the Internet like a postal system 📮
| Real Life | Internet |
|---|---|
| Your Home Address | IP Address |
| Letter | Data (Request/Response) |
| Post Office | ISP |
| Delivery Route | Network |
Example: www.google.com
👉 This is human-friendly name (not actual address)
DNS = Domain Name System
👉 It converts: www.google.com → 142.250.183.14
📌 Why?
Because computers understand numbers, not names
Your device sends a request like: "Give me Google homepage"
👉 This request travels through your: - Router - ISP (Internet Service Provider)
The request goes through multiple systems: - Routers - Servers - Fiber cables / satellites
📌 This process is called: Packet Routing
The server (where website is hosted) receives your request.
👉 Example: Google server understands: User wants homepage
Server sends back: - HTML - CSS - JavaScript - Images
👉 This data is sent in small packets
Your browser (Chrome, Edge, etc.): - Combines packets - Renders webpage
🎉 You see the website!
You type URL ↓ DNS converts to IP ↓ Request sent via ISP ↓ Server receives request ↓ Server sends data ↓ Browser shows website
Data is broken into small parts called packets
👉 Why? - Faster transfer - Reliable delivery - Easy error handling
Unique identity of device
Example:
192.168.1.1
Translates name → IP
Company that gives internet
Examples:
- Jio
- Airtel
- BSNL
Computer that stores website data
| Concept | Meaning |
|---|---|
| IP Address | Where you are |
| DNS | Translator |
| ISP | Internet provider |
| Server | Website storage |
| Packet | Small data unit |
👉 Next Tutorial Idea:
"DNS Working Structure" (Deep dive)