Execution units are specialized components within a CPU that perform the actual operations of instructions during program execution. They handle various tasks such as arithmetic calculations, logic operations, and data manipulations, playing a crucial role in maximizing processing efficiency. In the context of out-of-order execution, these units enable the CPU to execute instructions as resources are available rather than strictly following the original program order, which improves performance and resource utilization.
congrats on reading the definition of Execution Units. now let's actually learn it.