The ASROC Fire-Control System is the first shipboard installation of a digital computer. The computer receives electrical signals of target course and speed, wind direction and speed, and attack ship course, speed, pitch, and roll. These signals are used to compute future position of a target, launcher angle, and distance a missile will fly. The ASROC Fire-Control System was developed for the Navy under the technical direction of the U.S. Naval Ordnance Test Station, China Lake and Pasadena, California, by Librascope Division, General Precision, Inc, Glendale, California. June 1960. U.S. Navy Photo