Question: what is the unit of the speed of super computers?? 

Answer: TFlop/s  or teraflops per second.\nA FLop/s is one FLoating point Operation Per Second.  Tera means 10 ^ 12 (1 with 12 zeros after it).\nSo a teraflop is 1,000,000,000,000 floating point operations.
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