ASP.NET - ASP.NET Framework

ASP.NET is a server-side web application framework developed by Microsoft for building dynamic websites, web applications, and web services. It runs on the .NET Framework and allows developers to write code using languages such as C# or VB.NET. ASP.NET handles HTTP requests, processes business logic on the server, and sends HTML responses to the client browser. It provides built-in support for security, state management, caching, and configuration. The framework abstracts low-level HTTP details, allowing developers to focus on application logic. Classic ASP.NET includes Web Forms, MVC, Web Services, and Web API.

ASP.NET processes client requests on the server, executes business logic, interacts with databases, and returns HTML or JSON responses to the browser. This separation ensures security because core logic never runs on the client side. It also supports scalability through server-side execution.

The framework integrates tightly with IIS (Internet Information Services), enabling efficient request handling, caching, and application pooling. These features make ASP.NET suitable for enterprise-grade applications with high traffic.

ASP.NET provides built-in libraries for data access, authentication, configuration, and error handling. Developers do not need to build these components from scratch, reducing development time.

Overall, ASP.NET acts as the foundation upon which various programming models like Web Forms, MVC, and Core are built.