Which operating system is use in F-16?

The F-16 Fighting Falcon primarily uses a real-time operating system (RTOS) known as the Operating System/Embedded (OS/Embedded) developed by the U.S. Air Force. This OS is tailored for the aircraft's avionics and mission systems, providing the necessary real-time capabilities for flight control and weapon systems. Additionally, it integrates various hardware and software components to ensure reliable performance during complex missions.