Eric Brown, left, a researcher for IBM, hosts a version of the television game show Jeopardy! between IBM's Watson computer and students from Carnegie Mellon University and the University of Pittsburgh during a symposium on Watson, at Carnegie Mellon University in Pittsburgh, Wednesday, March 30, 2011.  Watson is the question-answering IBM computer that made headlines by competing against humans on the actual television game show.  (AP Photo/Keith Srakocic)

Photo by: Keith Srakocic

Eric Brown, left, a researcher for IBM, hosts a version of the television game show Jeopardy! between IBM's Watson computer and students from Carnegie Mellon University and the University of Pittsburgh during a symposium on Watson, at Carnegie Mellon University in Pittsburgh, Wednesday, March 30, 2011. Watson is the question-answering IBM computer that made headlines by competing against humans on the actual television game show. (AP Photo/Keith Srakocic)