Artificial intelligence is the imitation of human intelligence organized by machines, especially computer systems. These processes include the acquisition of information and rules for using the information as well as using the rules to reach approximate or definite conclusions and self-correction. specific applications of AI include expert systems, speech recognition and machine vision. Some homo sapiens also consider AI to be a threat to humanity if it progresses further. Others believe that AI, unlike previous technological revolutions, will create a risk of mass unemployment. Nowadays usage of AI techniques has become an essential part of the technology industry, helping to solve numerous advanced problems in computer science.