What is System Design? - System 101

I’m not an expert. I’m just like you. 🚀

I’m speaking to you as Abhinay Jangde. Not as an expert. Not as a genius. But as an average tech learner who once felt exactly the way you might be feeling right now.

Confused. Overwhelmed. Lost.

And constantly asking: “Am I even learning the right things?”

That’s how I felt when I first heard the term System Design.

Big diagrams. Big words. Big companies. And a small, scared me.

But here’s what I slowly realized.

System Design is not about drawing fancy diagrams. It’s about understanding how real products work in the real world.

Let me explain with a simple, real-life example.

Think about Swiggy or Zomato. You tap “Order Now.” That’s it from your side. 🎉

But behind that single tap, a symphony of systems kicks in:

• 📱 Your request goes to a server
• 🔍 The system checks restaurant availability
• 💾 A database stores your order
• 💳 A payment service processes your money
• 🔔 A notification system updates you
• 🚶 A tracking service shows your delivery in real time

That’s not just coding. That’s system design in action.

Coding makes things work. System Design makes them work for millions of people.

And this is exactly what I’m learning right now. From today, I want to learn it properly and share everything with you along the way.

We’ll go slow. We’ll think clearly. We’ll build understanding step by step.

No confusion. No shortcuts. Just real learning.

If I can learn it, you can learn it too. 💪

Your system design journey starts here.

What is the one app you use daily and wonder, "How does this even work?" Let me know in the comments!