First Watson won 'Jeopardy!' and now it's coming to your iPhone app. In this file photo, visitors check out a slimmed down version of the IBM Watson supercomputer at IBM's stand at the CeBIT ...

Jennings and Rutter played against Watson the following month at IBM’s T. J. Watson Research Laboratory in Yorktown Heights, New York, with then-host Alex Trebek emceeing. And the action kicked off on ...