What is the fetch-execute cycle?

The fetch-execute cycle is a fundamental concept in computer architecture that describes the process by which a processor retrieves instructions from memory and executes them. This cycle consists of several key steps: fetching the instruction from memory, decoding it to understand what action it requires, and then executing that instruction.

Choosing the correct answer underscores the importance of understanding how the CPU operates as it repeatedly performs this cycle, which facilitates the execution of programs. The cycle allows the CPU to run complex software by systematically going through each instruction in a program, making it essential for the functioning of all computer systems.

The other options may describe related concepts but do not accurately capture the essence of the fetch-execute cycle. For example, while some may involve aspects of data handling or storage, they do not specifically pertain to the step-by-step process by which instructions are executed in the CPU.