Honeywell Inertial Ref system is standard on many Airbus and Boeing models...
"Three Air Data Inertial Reference Units (ADIRUs) each comprise three ring laser gyros and three quartz accelerometers to accurately sense aircraft position and attitude. By integrating data from the inertial sensors and Global Positioning System (GPS), ADIRS provides automatic initialization, faster align times and 100 percent availability of Required Navigation Performance approaches."
Air Data Inertial Reference Unit - Wikipedia, the free encyclopedia