IEEE Std 1003.1 (POSIX)

IEEE Std 1003.1, commonly known as POSIX (Portable Operating System Interface), is a set of standards that ensures compatibility between different operating systems, particularly in Unix-like environments. It defines how software should interact with the operating system, covering aspects like file handling, process management, and command-line interfaces. By adhering to POSIX, developers can create applications that work across various systems, making software development more efficient and reducing compatibility issues. Essentially, POSIX acts as a common framework that promotes portability and interoperability in computing.