Artificial Intelligence is a higher order of machine learning. Some people have defined it as when the machine appears as smart as or smarter than a human. As for me, the verdict is still out on that one. The more I watch the daily news, the more I wonder which intelligence it is that is artificial, and for that matter, what intelligence really is! There are so many definitions floating around, but in a nutshell, Artificial Intelligence is considered a machine doing things that a human could or should do in a manner such that any reasonable person would not be able to distinguish the machine from the human in its response. In any event, Artificial Intelligence is a very far-reaching subject, and unfortunately there are as many meanings as people using the term!