Correction for the amount of Watson
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How much is 2 terabytes?
It's about half as much as Watson
The amount of Watson is about 4 terabytes.
(data store only)
Watson, the IBM supercomputer famous for competing against humans on the televised trivia game show Jeopardy!, utilizes 4 terabytes of variously-structured data to formulate answers. While "thinking", Watson processes about 0.490 terabytes of data per second.