primarily at the embedded systems market. REX OS – microkernel; usually an embedded cell phone OS RIOT ROM-DOS TinyOS ThreadX RT-Thread DSPnano RTOS Windows IoT – formerly Windows Embedded Windows CE Windows IoT Core Windows IoT Enterprise Wind River VxWorks RTOS. Wombat – microkernel; usually real-time embedded Zephyr LEGO Mindstorms brickOS leJOS Capability-based Cambridge CAP computer – operating system demonstrated the use of security capabilities, both in hardware and software, also a useful fileserver, implemented in ALGOL 68C Flex machine – Custom microprogrammable hardware, with an operating system, (modular) compiler, editor, * garbage collector and filing system all written in ALGOL 68. HYDRA – Running on the C.mmp computer at Carnegie Mellon University, implemented in the programming language BLISS KeyKOS nanokernel EROS microkernel CapROS EROS successor V – from Stanford, early 1980s See also Comparison of operating systems Comparison of real-time operating systems Timeline of operating systems Category links Operating systems Embedded operating systems Real-time operating systems References External links "List of Operating Systems". www.operating-system.org. List of operating systems Computing-related lists Operating