MPE/iX is an operating system developed by Hewlett-Packard (HP) for its HP 3000 series of computers. It was designed to support business applications and is known for its reliability and multitasking capabilities. MPE/iX is based on a proprietary architecture and provides a robust environment for managing data and applications. The system features a command-line interface and supports various programming languages, including COBOL and Pascal. MPE/iX also includes built-in database management and networking capabilities, making it suitable for enterprise-level operations. Although it is no longer actively developed, it remains in use by some organizations that rely on legacy systems.