Library: A collection of functions that you call from your code. You control the flow and decide when to use the library.

Framework: Provides the structure and flow control. The framework calls your code (Inversion of Control).

Angular is a framework because:

• It provides the application structure and architecture
• Controls the application flow through its component lifecycle
• Uses dependency injection to manage object creation
• Provides routing, forms, HTTP client, and other built-in features
• Follows specific conventions and patterns