When I first have some knowledge about AI is when I play online game in the very first time we call all the identity that controlled by computer but not human races AI.
Then gradually when I learned something about computer then I find out that Artificial intelligence is intelligence exhibited by machines. In computer science the field of AI research defines itself as the study of "intelligent agents": any device that perceives its environment and takes actions that maximize its chance of success at some goal. Colloquially the term "artificial intelligence" is applied when a machine mimics "cognitive" functions that humans associate with other human minds such as "learning" and "problem solving".