Portable Operating System Interface

Portable Operating System Interface (POSIX) is a set of standardized rules and protocols that ensure different computer systems and software can work together smoothly. It defines common functionalities, such as file handling, process management, and communication, allowing programs written for one system to run on others with minimal modification. Essentially, POSIX ensures compatibility and consistency across diverse operating systems like UNIX, Linux, and others, making development and integration more efficient and reliable.