Backend Overview
In this lesson, we introduce the backend — the engine that powers every modern application. You will learn what happens behind the scenes when users interact with an app, how servers process requests, manage databases, handle authentication, and connect different services together. We will also explore how AI-first development is changing backend engineering by enabling faster development, smarter automation, and more scalable systems. By the end of this lesson, you will understand the role of the backend and how it fits into the full software architecture.