An instruction is a fundamental command understood by a computer’s processor. It represents a single operation the processor can perform, such as adding two numbers, moving data from one location to another, or controlling the flow of program execution.
An instruction set is the complete repertoire of instructions that a specific processor architecture can execute. It defines the processor’s capabilities and the types of operations it can perform.
Think of instructions as the vocabulary of a computer and the instruction set as its dictionary. The more extensive and versatile the instruction set, the more complex tasks a processor can handle.
