Which term describes a section of a program that does not return any value?

A procedure is defined as a section of a program that performs a specific task but does not return any value to the caller. This concept is fundamental in programming, where the distinction between a procedure and a function is critical. In many programming languages, functions are designed to compute and return a value, while procedures might perform actions, such as modifying data or producing output, without returning anything.

This distinction plays a significant role in software design, as procedures can be used for tasks like data processing, logging, and controlling the flow of a program without the need for a return value. Understanding this helps in organizing and structuring code efficiently, ensuring that different parts of a program serve clear and distinct purposes, which can improve readability and maintainability.

The other terms have different definitions; for instance, a function is expected to return a value, a module refers to a separate file or component of code that organizes related functions and procedures, and a script typically refers to a collection of code instructions that might execute procedures and functions, but that does not specifically describe a procedure itself.