z/OS

z/OS is an advanced operating system used by large organizations on IBM mainframe computers to manage and run critical business applications. It efficiently handles complex workloads, processes vast amounts of data securely, and supports multiple users simultaneously. Designed for reliability, security, and high performance, z/OS ensures that essential functions—from banking transactions to airline reservations—operate smoothly and without interruption. It provides a stable foundation for enterprise computing, enabling companies to handle their most important, data-intensive tasks reliably and securely.