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Our computing power is currently estimated to be 1000 Petaflops(1 million trillion calculations per second.) In the year 2000 it was roughly 1 Petaflop (1thousand trillion calculations per second.)
The Defense Advanced Research Projects Agency (DARPA) awarded the two companies four-year contracts to design a supercomputer that is 100 times more powerful than today's most powerful systems, yet is simpler to program, administer and use.
Launched in 2002, its goal is to develop a system capable of performing calculations at the rate of 2 to 4 petaflops per second. A petaflop is 1 quadrillion (1 thousand trillion) calculations per second. "Flop" stands for floating-point operations.
The fastest supercomputer in operation today, an IBM BlueGene system, operates at 360 teraflops, or 360 trillion calculations per second. (2006)
https://www.networkworld.com/article/2301322/data-center/ibm–cray-win-darpa-supercomputer-contracts.html