Supercomputers are the largest and most powerful computer. Scientists and engineers use to solve complex problems or make massive calculations. Some supercomputers are independent computers with multiple processors, while others consist of multiple computers working together.
The Sequoia BlueGene/Q recently declared the fastest supercomputer in the world. It has an impressive number of cores (1.572.864) and uses the Linux operating system. The Sequoia developed by the American administration of nuclear safety and is used mainly for performing simulators of nuclear weapons, but utilized in other research projects that require large computing power, such as the human genome research.
The ranking of supercomputers changes frequently, as new models are developed or previously upgraded. You can track their ranking in top500.org.
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