Hi friend came from Hanoi that artificial intelligence has broad meaning as intelligence in science fiction, it is one of the key branches of information technology. Artificial Intelligence involves behavior, learning and intelligent adaptability of machinery. Application examples include control, scheduling and scheduling tasks, the ability to answer diagnostic questions, respond to customers about a company's products, identify handwriting, speech recognition and face recognition. Therefore, artificial intelligence has become a subject, with the main purpose of providing solutions to the problems of real life. Today, man-made systems are used frequently in economics, medicine, engineering and the military, as well as in popular computer software in the home and in video games.