System Design Basics: What Makes Apps Actually Scale?
Your app works perfectly for 10 users. But what happens when 10,000 or 10 million, show up at once? 💥 That's where Scalability comes in. In this beginner-friendly video, we explain exactly what scalability means in tech, why it matters for every app or website, and how architects think about building systems that can grow. Ever wondered how platforms like Instagram and Amazon manage millions of users and orders without issues? This video dives into the concept of building scalable systems. Chapters: 0:00 - Intro 0:40 - What is Scalability? 2:05 - How do we measure Scalability 4:20 - What Causes Scalability Bottlenecks? 5:45 - Principles of Scalability 9:30 - Horizontal vs Vertical Scaling 11:25 - Techniques for Building Scalable Systems
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