Let’s start with a small story
Suppose you want to send a letter to your sister in Delhi. You’re in a Bihar village.
In old times you’d have to do this:
- Write the letter on paper
- Put it in an envelope
- Walk to the village post office
- Stick a stamp
- Postman picks it up - 1 day
- Reaches the district post office - 1 day
- Train to Delhi - 2 days
- Delhi post office - 1 day
- Postman to sister’s house - 1 day
- Total: 6-7 days ⏰
Today you open WhatsApp, type “Hi didi!”, press send. Arrives in 1 second.
This isn’t magic. It’s the internet.
And the internet is really just an extremely fast version of the postal system.
What is the internet?
Internet = a giant network of billions of computers across the world.
Just like post offices are connected to each other, these computers are connected by wires and signals.
When you send a WhatsApp, your message:
- Leaves your phone
- Goes to a nearby mobile tower
- From there over wire to a city’s big server
- From there through undersea cables to Delhi / other countries
- To the tower near your sister
- Into your sister’s phone
All in 1 second. How? Because signals travel at the speed of light.
Think about it: Undersea? Yes! Roughly 500,000 kilometers of “internet cables” run along the world’s ocean floors. That’s like going to the moon and back, once. That’s why your message reaches America so fast.
A short history
- 1969: 4 computers in America connected for the first time. The “grandfather” of today’s internet.
- 1989: Tim Berners-Lee invented the World Wide Web (the “www” you see before websites).
- 1995: India got internet for ordinary people for the first time. 1 hour of internet then = ₹500.
- 2010: Smartphones arrived. A computer in every pocket.
- 2016: Reliance Jio launched. Suddenly internet became ₹100/month. Reached India’s villages.
- Today: Over 80 crore (800 million) Indians use the internet. Second-most in the world.
Think about it: in 1995, only 10,000 Indians used the internet. Today, 80 crore. That’s 80,000× growth in just 30 years.
What is a URL?
When you open a website, you type an “address” like:
bachaika.comgoogle.comyoutube.com
This is called a URL (Uniform Resource Locator).
It’s exactly like your home address:
| Your address | Website URL |
|---|---|
| Village: Jorla | .com (big region) |
| District: Madhubani | bachaika (specific name) |
| State: Bihar | https:// (address type) |
| India | The Internet |
When you type a URL and press Enter, your phone goes to that “address” and brings back the website.
How much power does this give you?
Use the internet right, and you have the entire world in your pocket:
📚 Every book is free somewhere (NCERT, Project Gutenberg, archive.org) 🎓 Every course is free (NPTEL, SWAYAM, Khan Academy, Coursera) 🌍 Every corner of the world is visible (Google Earth) 🩺 Talk to a doctor online (eSanjeevani) 💰 Government work from home (DigiLocker, e-District, UPI) 📰 Every newspaper in the world 🎶 Millions of songs and videos
The real point: using the internet for “watching reels” is fine too. But if you spend just 30 minutes a day learning, you’ll have done 180 hours in a year - almost a full college semester.
A real story - Ritesh Agarwal and OYO
Ritesh Agarwal was a boy from a small town in Odisha. At 17, he thought - “Why aren’t there cheap, good hotels in India?”
He built a website where small hotel owners could list their rooms, and people could book online.
Today, OYO Rooms is worth ₹70,000 crore. All because a small-town kid used the internet right.
Ritesh started with just a laptop. And an internet connection.
Try it yourself
- Go to Settings → Network on your phone. Look at your data connection (4G, 5G, or Wi-Fi).
- Try a special URL: open
speedtest.net. See how fast your internet is (in Mbps). - Memorize one useful URL that will serve you for years. My suggestion:
nptel.ac.in(free IIT lectures). - One night, think about it - “If I spend 1 hour a day learning on the internet, how much will my life change in 1 year?”
What did you learn?
- Internet = a network of billions of computers worldwide
- Your message reaches America in 1 second through undersea cables
- India went from 10K to 80 crore users in 30 years - 80,000× growth
- URL = a website’s address (like your home address)
- Internet = the whole world in your pocket - if you use it right
Next chapter
Now we’ll talk about the computer in your pocket - your phone. Your phone is more powerful than the computer that took humans to the moon. So what could you actually do with it?
The world is in your pocket. You are not behind.