How is "algorithm" defined in computer science?

In computer science, an algorithm is defined as a step-by-step procedure for solving a problem. This means that it consists of a sequence of well-defined instructions that can be followed to achieve a particular outcome or to perform a specific task. Algorithms are fundamental to programming and computer science because they provide a methodical approach to problem-solving, allowing for solutions to be replicated and understood systematically.

The definition emphasizes that an algorithm must be clear and unambiguous, enabling anyone to implement it in a programming language or another context effectively. Whether it's for sorting data, searching for information, or performing calculations, an algorithm outlines the necessary steps to reach a desired result, contributing to the efficiency and effectiveness of computational processes.

In contrast, random collections of instructions do not provide the structured approach that defines an algorithm. Variable definitions alone do not dictate a problem-solving strategy; they merely specify certain elements used within an algorithm. While a theoretical framework for programming may provide context for understanding algorithms, it does not encapsulate the concept of an algorithm itself, which is focused on actionable steps for task completion.