What are the 4 types of AI?

 There are several ways to classify artificial intelligence (AI), and the types of AI can vary depending on the specific classification scheme being used. Some common ways to classify AI include:

1. Reactive machines: These are the simplest form of AI and are designed to perform specific tasks based on a specific set of inputs. They do not have the ability to learn or adapt to new situations and are not able to retain past experiences. Examples of reactive machines include Deep Blue, the chess-playing computer that defeated world champion Garry Kasparov in 1997.

2. Limited memory: These AI systems have a limited memory and are able to use past experiences to inform their current actions. These systems can learn and adapt to new situations, but their ability to do so is limited by their memory.

3. Theory of mind: This type of AI is designed to understand and simulate human thoughts and emotions. It is able to understand and anticipate the thoughts and actions of others, and can even understand the concept of self.

4. Self-awareness: This is the most advanced type of AI, and it is characterized by a sense of self-awareness and consciousness. It is able to understand and reflect upon its own thoughts and actions, and can even engage in abstract thinking.

It is worth noting that these types of AI are not mutually exclusive and that many AI systems may exhibit characteristics of multiple types.