sentences:  A new portion of the CPU, the "scheduler", looks for these independent instructions and feeds them into the units, taking their outputs and re-ordering them so externally it appears they ran in succession.The amount of parallelism that can be extracted in superscalar designs is limited by the number of instructions that the scheduler can examine for interdependencies.Examining a greater number of instructions can improve the chance of finding an instruction that can be run in parallel, but only at the cost of increasing the complexity of the scheduler itself.