What is meant by Google Maps? Explain its working.

Google Maps is one of the frequently used apps on mobile phones. If you tap on Google Maps, it will show you the location of your mobile. On setting the destination, it shows the shortest route map on the screen. You can then proceed through the path for reaching your destination. From time to time, it will keep on guiding you via voice instructions like go straight 100m, take left or right turn etc.