There are four main categories of artificial intelligence (AI) : Reactive machines: These are the most basic type of AI systems, which do not have the ability to learn from their experiences or store past events. They can only react to the current situation and perform actions based on their programming. An example of a reactive machine is a self-driving car that follows a predetermined route and makes decisions based on its sensors and the current environment. Limited memory: These AI systems have the ability to store and retrieve past events, but they do not have the ability to use this information to improve their decision-making. An example of a limited memory AI is a security system that can recognize a person's face and grant access based on a pre-approved list of individuals, but it cannot learn to recognize new faces or adapt to changing security threats. Theory of mind: This type of AI refers to systems that are able to understand and predict the thoughts and act...