Can the human brain perform more calculations per second than a supercomputer? The calculating speed of the three top supercomputers, IBM’s Blue Gene/L, IBM’s BGW, and IBM’s ASC Purple, has been determined. The speed of IBM’s Blue Gene/L is 245 teraflops more than that of IBM’s BGW. The computing speed of IBM’s BGW is 22 teraflops more than that of IBM’s ASC Purple. The combined speed of all three top supercomputers is 568 teraflops. Determine the computing speed (in teraflops) of each supercomputer. A teraflop is a measure of a computer’s speed and can be expressed as 1 trillion floating-point operations per second. By comparison, it is estimated that the human brain can perform 10 quadrillion calculations per second.