Navigation systems have become essential tools for modern-day travel, providing accurate directions and mapping capabilities to drivers and pilots alike. There are several synonyms for the term navigation system, such as GPS (Global Positioning System), map software, route planner, car navigator, and aircraft avionics. The GPS system is the most widely used and is integrated into devices such as smartphones, tablets, and smartwatches, giving users access to real-time location tracking and direction assistance. Map software and route planners are also popular among frequent travellers, offering customised journey plans and tips for the most efficient route. Aircraft avionics systems are employed in commercial and military aircraft, offering precision guidance, communication, and navigation features to pilots.