Instrumentation interfacing frequently requires the linking of intelligent systems together, as well as requiring the link itself to be intelligent. The airborne instrumentation computer system AICS was developed to address this requirement. Its small size, approximately 254 by 133 by 140-mm, standard bus, and modular-board configuration give it the ability to solve instrumentation interfacing and computation problems without forcing a redesign of the entire unit. This system has been used on the F-15 aircraft digital electronic engine control DEEC and its follow-on engine model derivation EMD project, and in an OV-1C Mohawk aircraft stall-speed warning system. The AICS is presently undergoing configuration for use on an F-104 pace aircraft and on the advanced fighter technology integration AFTI F-111 aircraft.