Artificial intelligence is the study of computer systems that can simulate human intelligence through activities like perception, learning, reasoning, and problem solving. It began with Alan Turing proposing the Turing test to check machine intelligence, and the term "artificial intelligence" was coined by John McCarthy in 1956. While current AI focuses on specific applications, true artificial general intelligence that replicates all human cognitive abilities has not been achieved. Potential pros of AI include faster information processing than humans, accelerated technological progress, and applications like robot doctors, while potential cons may include increased sedentary lifestyles.