The CETU-0500 is a component of the COMPARTA system. It is a small, rugged, versatile, low-power digital controller designed to be a programmable component of a larger system. The CETU-0500 offers several features including built-in I/O, communication ports for external communication, a host of peripherals, and an operating system for rapid application development. It is designed for use in industrial and commercial environments, where its ruggedness, low power consumption, and scalability make it an ideal choice.