Express Logic develops, markets and supports the ThreadX® real-time operating system (RTOS), NetX™TCP/IP networking stack, USBX™ USB stack, FileX® embedded file system, and PEGX™ GUI toolkit for embedded applications. ThreadX is a royalty-free, full source code, small-footprint, low-overhead RTOS that is extremely easy to learn and use. ThreadX is one of the most widely deployed RTOS products in the world, with over 1.25 billion products based on ThreadX.