RTX (operating system)

RTX is a line of real-time operating system (RTOS) extensions by the firm IntervalZero. They are a software extension or abstraction layer that converts Microsoft Windows operating system into a RTOS. It was the first Windows real-time solution on the market.
Overview.
RTX real-time software extensions to Windows combines the familiar user experience of Microsoft Windows (rich GUI, extant drivers and software, ...) and the direct control of embedded hardware by providing hard real-time determinism and symmetric multiprocessing (SMP) abilities.
The RTX extensions have followed the Windows architecture since Windows NT 3.5. Generally, RTX supports 32-bit Windows; RTX64 supports 64-bit Windows. As of 2015, RTX2016 supports 32-bits, RTX64 4.x supports 64-bits.
The systems are used in different markets such as industrial automation, testbed and simulation, digital audio, digital video, aerospace military, medical devices, electrical grid, electricity generation, and other uses.