operating in developing countries operating in europe operating in france operating in greece operating in india operating in its territory operating in japan operating in mexico operating in poland operating in russia operating in several countries operating in spain operating in switzerland operating in syria operating in the area operating in the city operating in the community operating in the country operating in the european union operating in the field operating in the internal market operating in the market operating in the region operating in the same area operating in the sector operating in the single market operating in the state operating in the territory operating in the united states operating in their territory operating in these areas operating in these countries operating in these sectors operating in this area operating in this field operating in this sector operating in ukraine operating in various countries operating income operating information operating instructions operating interface operating internationally operating leases operating leasing operating legally operating level operating lever operating licences operating licence operating license operating life operating light operating limitations operating limits operating locally operating losses operating loss operating machinery operating machines operating management operating margins operating margin operating mechanism operating menu operating methods operating microscope operating modalities operating models operating model operating modes operating mode operating needs operating noise operating nuclear power plants operating officer operating on behalf operating on the basis operating on the ground operating on the high seas operating on the internet operating on the market operating on the territory operating on their territory operating options operating out operating panel operating parameters operating partner operating parts operating performance operating period operating permit operating personnel operating phase operating philosophy operating plan operating platform operating point operating policies operating position operating power operating practices operating pressure range operating pressures operating pressure operating principles operating principle operating problems operating procedures operating procedure operating processes operating profile operating profit increased operating profit margin operating profitability operating profit operating properties operating range operating records operating regulations operating reliability operating requirements operating resources operating restrictions operating results operating result operating revenue operating risks operating rod operating rooms to the operating room operating room operating rules operating safety operating segments operating services operating settings operating simultaneously operating skills operating software operating space operating specifications operating speed operating stability operating standards operating state operating status operating steps operating strategy operating structures operating subsidies operating support operating surplus operating switch operating system based operating system being used operating system called operating system can operating system components operating system designed operating system developed operating system environment operating system error operating system files operating system has operating system in the world operating system installation operating system installed operating system is installed operating system is running operating system is windows operating system kernel operating system level operating system market operating system may operating system must operating system name operating system needs operating system of the computer operating system of the device operating system of your computer operating system on your computer operating system requirements operating system security operating system settings operating system software operating system starts operating system type operating system updates operating system upgrade operating system used operating system version operating systems are supported operating systems including windows operating systems including operating systems like windows operating systems to the operating system operating system