Development of a multi level data generation application for GEMSOS

The Gemini computer, which uses the Gemini Multiprocessing Secure Operating System (GEMSOS), is one of only a handful of computers which are designed to meet A1 level requirements. Martin Marietta's approach to using the Gemini computer as a process, device, and memory manager is discussed. An example application which was developed in 25 man-days with 125 lines of trusted code is presented. The evaluatable application is easily enhanced to perform a multitude of functions without adding a line of trusted code. It is noted that the significance of the multilevel data generator is that it provides a platform from which to design and integrate many systems. The platform has a wide applicability. For example, it can be used as a store-and-forward system, a data storage area (e.g. file system), or a local area network manager.<>