Gallery: Inside Japan's K Computer - world's top supercomputer Summary: The unfinished Fujitsu K Computer, at more than 8 petaflops, is more than three times more powerful than China's second place machine. By Andy Smith | June 20, 2011 -- 08:51 GMT (01:51 PDT) Previous | Next Image 7 of 11 Here's a look at the pieces of the water cooling system for the K Computer. Topic: China Kick off your day with ZDNet's daily email newsletter. It's the freshest tech news and opinion, served hot. Get it.