A number of Real Time Operating Systems Implemented in Hardware

This paper describes several state-of-the-art real-time operating systems (RTOS) implemented in hardware that implement task scheduling, synchronization, multiprocessor dispatching, time management and event management. When designers develop RTOS support in hardware different levels of hardware usage are used. Many architects developing RTOS supporting hardware are opting for designs focused around determinism and avoid using Commercial Off The Shelf (COTS) chips in building their RTOS supporting hardware. No matter the level of hardware support that was implemented for RTOS execution, real-time operating systems implemented in hardware provide significant speed-ups over those implemented in software.