The AN/UYK-7 was the standard 32-bit computer of the United States Navy for surface ship and submarine platforms, starting in 1970. It was used in the Navy's Aegis combat system and U.S. Coast Guard, and the navies of U.S. allies. It was also used by the U.S. Army. Built by UNISYS, it used integrated circuits, had 18-bit addressing and could support multiple CPUs and I/O controllers (3 CPUs and 2 I/O controllers were a common configuration). Its multiprocessor architecture was based upon the UNIVAC 1108. An airborne version, the UNIVAC 1832, was also produced.