Scalability is a system’s ability to grow — more users, more data, more demand — without breaking or slowing down.
The term shows up a lot in tech. If you launch a website that gets 100 visits a day, that’s easy. But what if it suddenly gets 100,000? A scalable site will keep running smoothly. Same goes for apps, databases, or even teams: if it handles more work without chaos or meltdown, it’s scalable.
Why does scalability matter in tech?
Because growth happens fast. A startup might have 10 users today and 10,000 next month. If your infrastructure can’t keep up, people leave. Scalable systems are designed to add resources (like more servers or bandwidth) when needed — without needing to rebuild everything.
Think of it like a food truck that turns into a full restaurant without changing the menu or burning the kitchen down.
Need a technical deep dive? Check this from Flutter and AWS.
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