Instruction Execution is the process by which a computer's central processing unit (CPU) carries out commands from a program. This involves fetching the instruction from memory, decoding it to understand what action is required, and then executing the operation. The result may involve performing calculations, moving data, or interacting with input/output devices. During Instruction Execution, the CPU uses its registers and arithmetic logic unit (ALU) to perform tasks. Each instruction typically consists of an operation code (opcode) and operands, which specify the data to be used. This cycle of fetching, decoding, and executing continues until the program completes its tasks.