POSIX (Portable Operating System Interface)

POSIX, or Portable Operating System Interface, is a set of standards that define how software applications should interact with operating systems. It ensures that programs can run on different systems without needing major changes. Developed to promote compatibility, POSIX specifies aspects like command-line utilities, programming interfaces, and environment behavior. This standardization allows developers to create software that works across various platforms, such as Unix, Linux, and other systems, enhancing portability and efficiency in software development. Essentially, POSIX helps ensure that software can operate smoothly on different devices and operating systems.