What is a common characteristic of all programming languages?

The characteristic that all programming languages share is that they provide mechanisms for developing software instructions. Every programming language is designed to enable users to write code, which instructs the computer on how to perform specific tasks and operations. This fundamental purpose of creating and executing instructions is what defines programming languages, regardless of their syntax, structure, or the environments in which they operate.

The ability to define procedures, manipulate data, and automate processes is central to programming. This encompasses a wide variety of languages, including high-level languages like Python and Java, as well as lower-level languages such as C. Each language may have unique features or paradigms, but the essential function of enabling the creation of software instructions remains consistent across the board.