Artificial intelligence categories

Artificial intelligence (AI) can be categorized in many different ways, depending on the criteria used. One common way to categorize AI is by the degree of human-like intelligence exhibited by the system. Reactive machines are the simplest form of AI and can only respond to specific inputs, while limited memory systems can store past experiences and use them to make decisions. Theory of mind systems can understand the mental states of others and make inferences based on that understanding. Self-aware systems can have a sense of consciousness and can reason about their own existence. Another way to categorize AI is by the type of task it is designed to perform, such as perception, reasoning, and decision-making.