Images per second: a measurement of the rate that pictures are displayed to create a video stream. a rate of 25 ips (pal) or 30 ips (ntsc) is generally considered to be full motion video.
Instrument protective system
Impact predictor system
Inches per second
Information processing system
Inlet pressure survey
Instrumentation power supply
Instrument pointing system
Interceptor pilot simulator
Interruptions per second
Image processing system; inertial positioning system
