The A330 shares the same glass cockpit flight deck layout as the A320 and the A340, featuring electronic instrument displays rather than mechanical gauges. Instead of a conventional control yoke, the flight deck features side-stick controls, six main displays, and the Electronic Flight Instrument System (EFIS), which covers navigation and flight displays, as well as the Electronic Centralised Aircraft Monitor (ECAM). Apart from the flight deck, the A330 also has the fly-by-wire system common to the A320 family, the A340, the A350, and the A380. It also features three primary and two secondary flight control systems, as well as a flight envelope limit protection system which prevents maneuvers from exceeding the aircraft's aerodynamic and structural limits.