There are five types of Artificial Intelligence:
1. Reactive machines: These are the simplest AI systems. They do not have any memory and they only react to the current situation. For example, a chess program that can only make moves based on the current state of the board is a reactive machine.
2. Limited memory: These AI systems have some memory and they can use it to learn from past experiences. For example, a self-driving car that remembers the position of other vehicles in order to make decisions is an AI system with limited memory.
3. Theory of mind: This type of AI system is able to understand human emotions and intentions. For example, a chatbot that can carry on a conversation with a human is an example of theory of mind AI.
4. Self-aware: This is the most advanced type of AI system which is aware of its own existence and can intro spectively reflect on its own thoughts and feelings. Currently, there are no fully self-aware AI systems in existence but there are some prototype systems that exhibit some degree of self-awareness..