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The fastest got faster, as the K Computer topped its own record on the twice-yearly supercomputer speed test by scoring 10.51 quadrillion calculations per second.
In the twice-yearly list of the fastest computers on the planet, IBM has 5 of the top 10 most powerful computers, including the No. 1 spot.
Created to monitor the U.S. nuclear weapons stockpile, the IBM supercomputer was the first to break the petaflop barrier.
In the latest ranking of high-performance computers, the IBM-based Roadrunner system at Los Alamos National Laboratory once again crosses the petaflop barrier.
The biannual Top500 Supercomputing list is out, and for the first time in seven years, Japan has built the world's fastest computer. K Computer displaces China's Tianhe-1A just six months after the Chinese machine took the crown.
Harnessing more than 82,000 processors on the world's fourth-ranked supercomputer, scientists run an experiment that represents 1 percent of human brain activity.
If you have $1,279, you can buy an hour of supercomputing time on Amazon's cloud.
The IBM system at Los Alamos retains the lead it nabbed a year ago as the most powerful supercomputer in the world.
Cray XT5 supercomputer known as "Jaguar" finally bests IBM after three tries. The top 10, while still dominated by supercomputers housed in the U.S., had just one newcomer.