The K computer‎: 10,000,000,000,000,000 calculations per second

[ErikStenger]

Which will be available for shared use by researchers in November ? is named after the Japanese numerical unit 京 (kei), meaning 10 quadrillion, or 10,000 trillion. By achieving the targeted 10 petaflops, a measure of computer performance equaling 10 quadrillion calculations ? or floating-point operations, to be precise ? per second, K lived up to its name in November.

10,000,000,000,000,000 calculations per second | The Japan Times Online