Which component in the GPWS system provides appropriate aural and visual warnings?

The GPWS (Ground Proximity Warning System) computer is specifically designed to monitor the aircraft's altitude and flight path in relation to the terrain or the runway environment. It processes data from various aircraft sensors to determine if the aircraft is in a potentially hazardous position relative to the ground. When the system detects unsafe conditions, such as an impending terrain conflict or an unsafe approach, the GPWS computer generates appropriate aural (auditory) warnings, such as "Terrain, terrain" or "Pull up," as well as visual alerts displayed on the cockpit instruments.

This specialized function is distinct from the roles of other systems in the aircraft. For instance, while the aircraft computer may handle various aircraft-wide operations, the flight control computer focuses primarily on flight dynamics and control inputs, and the navigation system is responsible for guiding the aircraft en route rather than warning about terrain proximity. Thus, the GPWS computer is uniquely equipped to provide both aural and visual warnings that enhance situational awareness and promote safety in flight operations.