Seven is the number of years Japan needed to reclaim the title “Worlds Most Powerful Computer”. Accompolishing this feat was no easy task. This mega database consists of 672 large cabinets, together containing a whopping 68,544 processors. It uses at 9.9 megawatts of power, running up an electricity bill of about $10m (£6.16m) a year — that's enough electricity to power about 10,000 homes a year.
The “K”, deriving from the word “Kei” in Japanese, meaning 10 quadrillion, is capable of 8.16 petaflops (8.16 quadrillion) calculations per second. This supercomputer is faster than the next five supercomputers behind it combined.
The cost of reaching this magnitude of computing? $1.39 billion.
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