No Operation

(no-op)

Most often, a command given to the CPU that causes nothing to happen. Sometimes used as a tool to control timing-sensitive tasks.

• It is also a term sometimes used for a person assigned to a project but who contributes nothing to the project.
• Finally, it is a term sometimes used when some task fails (e.g., going to a shop and finding it closed).

More Information

• Processor Info Page
• Assembly Programming