What's the Difference Between Strong AI and Weak AI?

Artificial Intelligence (AI) is a very common term today, but what present-day AI is and what most people think it is, can be very different. The AI you know is "weak" AI, but the AI many fear is "strong." It's easy to throw around a term like "AI", but that doesn't make it clear what we're really talking about. In general, "artificial intelligence" refers to a whole field in computer science. The goal of AI is to get computers to replicate what natural intelligence can accomplish.