System V

System V is a version of the UNIX operating system developed by AT&T in the early 1980s. It introduced standardized features for managing hardware resources, running programs, and organizing files. Think of it as a set of rules and tools that help computers operate efficiently and reliably, enabling multiple users and applications to share resources smoothly. System V became a foundation for many later UNIX and Linux systems, shaping how modern operating systems handle tasks like process management, file systems, and system services.