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About Watson

Watson is powered by 10 racks of IBM Power 750 servers running Linux, and uses 15 terabytes of RAM, 2,880 processor cores and is capable of operating at 80 teraflops. Watson was written in mostly Java but also significant chunks of code are written C++ and Prolog, all components are deployed and integrated using UIMA.

Watson contains state-of-the-art parallel processing capabilities that allow it to run multiple hypotheses – around one million calculations – at the same time.

Hadoop inside™

Original title and link: About Watson (NoSQL databases © myNoSQL)

via: http://blog.reddit.com/2011/02/ibm-watson-research-team-answers-your.html