The cloud. We toss that word around like everyone knows what it means, but let me be honest—for the longest time, even I found it a bit nebulous. Is it actual clouds? Some magical floating storage in the sky? Not quite. The cloud is just someone else's computer. A very powerful, very distant computer that you're renting time on.
And that's the genius of it.
Before cloud computing became mainstream, if you wanted to run a website or an app, you had to buy physical servers, set them up in a room somewhere, keep them cool, patch security vulnerabilities, and pray they didn't crash during a traffic spike. It was expensive, complicated, and risky. Small companies couldn't compete with giants who had massive IT budgets.