The primary function of a dive computer is to assist in what area?

The primary function of a dive computer is to monitor time and depth to avoid Decompression Illness (DCI). Dive computers continuously track these critical parameters throughout the dive, allowing divers to stay within safe limits of time and depth according to the dive plan and their specific dive profile. By doing so, they help divers manage their ascent rates, ensure they do not exceed no-decompression limits, and keep an eye on nitrogen absorption, which is vital for preventing DCI.

While guiding underwater navigation, calculating oxygen consumption, and verifying buddy system protocols are important elements of safe diving practices, they are not the primary focus of a dive computer. Navigation may rely on underwater compasses or visual markers, oxygen consumption monitoring is typically done through separate equipment or manual calculations, and buddy protocols focus on communication and safety checks between dive partners rather than a function of a dive computer itself. Thus, the role of a dive computer is predominantly centered on monitoring time and depth for the diver's safety, particularly in preventing DCI.