The fastest computer on planet earth:Jaguar XT5

The fastest computer on planet earth Cray XT5 known as JaguarXT5 built by Seattle-based Cray Inc for US department of energy's owned by Tennessee and National Institute of Computational Science placed in Oak Ridge National Laboratory , Jaguar moved to no1 position with a performance speed of 1.759 petaflops[10 to the power of 15]which is Quadrillion calculation per second [one thousand million million calculations per second]this super computer has pushed back the previous No1 supercomputer IBM road runner system of Los Alamos National Laboratory in New Mexico with a speed of 1.04 petaflops to second position.
FLOPS: Floating Operations per Second