SUBROUTINES Meaning and
Definition
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Subroutines are sections of code or segments of a computer program that are written to perform specific tasks or functions within a larger program. They are essentially small, self-contained procedures that can be called or invoked from other parts of the program, making the code more organized, modular, and reusable.
Subroutines provide a way to break down complex tasks into smaller, more manageable steps, allowing programmers to divide their programs into logical components. By encapsulating certain functionality within subroutines, it becomes easier to understand and maintain the overall structure of the program.
These reusable code blocks can be called multiple times from various parts of the program, saving time and effort by eliminating the need to write redundant code. Subroutines often accept input parameters, allowing them to perform their tasks with different values on each call. They may also return output values or modify variables in the main program.
In addition to enhancing code readability and reducing duplication, subroutines allow for easier debugging and troubleshooting. Since each subroutine is responsible for a specific task, it becomes simpler to isolate and fix any issues that may occur within them.
Overall, subroutines are a fundamental concept in computer programming that promote code reusability, modularity, and maintainability by dividing complex programs into smaller, more manageable pieces.
Etymology of SUBROUTINES
The word "subroutines" is derived from the combination of the prefix "sub-" and the noun "routine".
The prefix "sub-" comes from Latin and means "under" or "below". It is commonly used in English to denote something that is subordinate, secondary, or lower in rank or position.
The noun "routine" originated from the French word "route" in the late 17th century, meaning a regular or familiar way of doing things. It evolved to refer to a sequence of operations or instructions that perform specific tasks within a larger program.
Therefore, "subroutine" combines "sub-" (denoting something subordinate or secondary) with "routine" (referring to a sequence of operations), indicating a smaller set of instructions or a subordinate program within a larger one.
