Routine and subroutine are commonly used terms in the field of software development to describe specific sets of instructions or tasks that are designed to be executed in a particular order.

A routine, also known as a function or procedure, is a block of code that performs a specific task within a larger program.

Routines are typically reusable and can be called multiple times from different parts of the program.

They are often used to break down complex tasks into smaller, more manageable pieces, making the code easier to read, maintain, and debug. On the other hand, a subroutine is a type of routine that is designed to be called from within another routine.

Subroutines are used to encapsulate common functionality that is needed in multiple parts of a program.

By isolating this functionality in a separate subroutine, developers can avoid duplicating code and improve the overall structure and efficiency of their programs. Both routines and subroutines play a crucial role in software development, helping developers to write more modular, maintainable, and scalable code.

By breaking down tasks into smaller, reusable units of code, developers can streamline the development process, reduce errors, and improve the overall quality of their software. In summary, routines and subroutines are fundamental concepts in software development that enable developers to write more efficient, maintainable, and scalable code.

By understanding the differences between these two terms and how they are used in practice, developers can improve their coding skills and build better software applications.