Artificial intelligence

           Artificial intelligence & Its Applications 

In computer science, artificial intelligence (AI), sometimes called machine intelligence, is intelligence demonstrated by machines, in contrast to the natural intelligence displayed by humans and animals. Leading AI textbooks define the field as the study of "intelligent agents": any device that perceives its environment and takes actions that maximize its chance of successfully achieving its goals.Colloquially, the term "artificial intelligence" is often used to describe machines (or computers) that mimic "cognitive" functions that humans associate with the human mind, such as "learning" and "problem solving".

Exactly what is Artifical Intelligence? 

Artifical intelligence is just as the word implies the intelligence is artificial , programmed by human to perform human activities . This artificial intelligence is incorporated into computer systems to create AI systems that ultimately functions as units of "Thinking machines".