What is a separate block of code containing a set of instructions called?

A separate block of code containing a set of instructions is known as a subroutine. A subroutine is a reusable piece of code designed to perform a specific task, which can be invoked from different parts of a program. This modular approach allows for better organization of code, reduces redundancy, and simplifies debugging. By isolating functionalities into subroutines, programmers can work on individual components independently without interfering with the rest of the code, thereby enhancing efficiency and maintainability.

In programming, subroutines can also be referred to as functions, procedures, or methods, depending on the programming language being used. This terminology emphasizes their role in structuring code and making it more logical and easy to follow.

Variables refer to storage locations in memory that hold data, while sequences pertain to the linear flow of commands executed one after another. Conditionals are structures that enable decision-making in code but do not necessarily represent a separate block of code in the way subroutines do.