There are certainly almost as many definitions of AI as there are experts. We can start by looking at some areas that can definitely be seen as artificial intelligence, but do not always occur in categorizations of modern computer-based AI.
Artificial General Intelligence is an area where machines will handle everything people can manage. The type of AI solutions that attract business interest today is more about building solutions to solve specific problems. Artificial general intelligence is sometimes called "strong AI" or "full AI". The more problem-oriented variant is called "weak AI".
Cognitive IT . Here are some partly contradictory definitions. IBM is the company that has highlighted the concept most, and then it is about building solutions that can handle the same things as a human being, but in a somewhat different and better way.
Robots. AI solutions of different types are often key components for building robots, but the purpose of using them is to create a whole that mimics people on multiple levels than just those resonating.
The more problem-oriented "weak" AI solutions are often found in any of these areas:
There is no true categorization of AI solutions, but many are often partially overlapping. A fundamental problem is that technology solutions and applications are mixed together.