Modern Web Development: The Full Stack Ecosystem
The Request/Response Lifecycle: Demystifying what happens between hitting "Enter" in the URL bar and seeing a page—breaking down DNS resolution, the HTTP handshake, and how servers deliver assets to the browser.
The Frontend Facade: How HTML structure, CSS presentation, and JavaScript logic combine to create the "Client-Side" experience, turning raw code into the interactive interface users actually see and touch.
The Backend Brain: Understanding the "Server-Side" logic—whether it's Node.js, PHP, or Python—that processes data, handles security authentication, and enforces business rules behind the scenes.
The Data Persistence Layer: The role of the database (SQL vs. NoSQL) as the application's long-term memory, ensuring that user profiles, orders, and content survive beyond a single session.