 Early flight simulators used the SDS 930, because of its hardware integer multiply and divide capability and its real-time data acquisition and control peripheral modules.The machines are particularly well suited to this and other kinds of data acquisition and real-time analysis, as well as to serving as a digital control system for analog-hybrid systems.The Surface Ship ASW Attack Trainer (Device 14A2A) used a SDS 930 computer and was designed to train the ASW attack team of a US Navy destroyer in submarine warfare by providing realistic simulations ashore with cost savings in operating time and expense at sea.