January 13, 2011
“Jeopardy!” champions Ken Jennings, left, and Brad Rutter, right, look on as an IBM computer called “Watson” beats them to the buzzer to answer a question Thursday during a practice round of the “Jeopardy!” quiz show in Yorktown Heights, N.Y.
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It’s the size of 10 refrigerators, and it swallows encyclopedias whole, but an IBM computer was lacking one thing it needed to battle the greatest champions from the “Jeopardy!” quiz show. It couldn’t hit a buzzer.