Watson is an IBM supercomputer system capable of answering questions posed in natural language. It competed on Jeopardy! in 2011 against human champions and won. Watson was created by a team of researchers at IBM with the goal of advancing artificial intelligence and demonstrating natural language processing.

1. Watson
http://www.youtube.com/watch?v=FC3IryWr4c8&feature=email
Watson:
http://www.youtube.com/watch?v=seNkjYyG3gI&feature=email
History:
http://www.youtube.com/watch?v=39jtNUGgmd4&feature=email