What is POSIX? Explained by Richard Stallman

The article on OpenSource.com, written by Richard Stallman, provides a deep insight into the POSIX standard and its significance in the world of operating systems. POSIX, or Portable Operating System Interface, is a set of standards that define the interfaces and functionalities of operating systems. It was created to ensure the portability of applications across different operating systems, which is crucial in a diverse computing environment. Stallman emphasizes that POSIX is not just a technical specification, but it also facilitates collaboration among developers, allowing them to create software that runs on multiple platforms without the need to write it from scratch for each system. The article also discusses the evolution of the standard and its impact on the development of open-source software, making it even more relevant in the context of modern technology. Understanding the POSIX standard is key to effective programming and working in varied computing environments.