Meet Sequoia, the most powerful computer in planet Earth. The BBC reports that Sequoia is capable of calculating, in one hour, 'what otherwise would take 6.7 billion people using hand calculators 320 years.' It is used for nuclear studies

The Special K, No 2 computer made in Fujitsu Japan.

Read more: http://www.dailymail.co.uk/sciencetech/article-2161182/IBM-Sequoia-US-reclaims-spot-worlds-fastest-supercomputer-Chinas-Fujitsu-K.html