The four main types of AI are…

Reactive Machines

• Description – These AI systems are designed to perform specific tasks based on pre-programmed rules and respond to specific inputs. They don’t have memory or learn from experiences.
• Example – IBM’s Deep Blue, which played chess and made moves based on the current game state.

Limited Memory

• Description – These AI systems can learn from past experiences and improve their performance over time, but their memory is limited and task-specific.
• Example – Self-driving cars that use data from previous trips to make better driving decisions.

Theory of Mind

• Description – This type of AI is still in development and aims to understand human emotions, thoughts, and intentions. It would be able to predict human behavior and react accordingly.
• Example – A robot that can understand and interact with human emotions (though not yet fully realized).

Self-Aware AI

• Description – This is the most advanced type of AI, which would have its own consciousness and the ability to understand and interpret its own existence. It is still theoretical.
• Example – AI that has self-awareness, understands its goals, and can make decisions like humans (yet to be developed).

These types represent the range from simple task-specific systems to more complex, theoretically advanced AI.