Is AutoCAD a BIM?

Could you clarify the relationship between AutoCAD and BIM for me? Are they interchangeable terms, or does AutoCAD serve as a tool within the BIM process? As an expert in the field, I'm curious about the distinct functions and capabilities of each, and how they fit into the broader landscape of design and construction software. Can you provide some insight into how professionals in the industry leverage these tools, and what advantages or limitations they might encounter when doing so?