Artificial Intelligence (AI) refers to the simulation of human intelligence in machines that are programmed to think and learn like humans. AI systems can be trained to perform tasks that typically require human intelligence, such as visual perception, speech recognition, decision-making, and language understanding.

There are several different types of AI, including:

  1. Reactive Machines: These are the most basic forms of AI, which can only react to the environment and are not capable of remembering past experiences.
  2. Limited Memory: These AI systems can remember past experiences and use that information to inform future decisions, but they cannot form a general understanding of the world.
  3. Theory of Mind: These AI systems can understand and simulate human emotions and mental states
  4. Self-Aware: These AI systems have a sense of self and can understand their own mental states and emotions.

The field of AI is constantly evolving and advancing, with ongoing research in areas such as machine learning, natural language processing, computer vision, and robotics.