Introduction to GPS

The video tutorial explains the Global Positioning System (GPS), a satellite-based navigation system providing location and time information globally. Initially developed by the U.S. Department of Defense for military purposes, it became available for civilian use in the 1980s. GPS operates with a network of satellites orbiting the Earth, transmitting signals to receivers that calculate precise locations. The system is free to use, with no subscription fees. Modern GPS devices are highly accurate, functioning well even in challenging environments, and are crucial for navigation and emergency services.

What is the primary function of the Global Navigation Satellite System (GNSS)?

• To facilitate internet connectivity

• To offer reliable location and time information

• To provide weather forecasts

• To monitor space debris

Who maintains the GPS system?

• United States government

• International Space Station

• United Nations

• European Union

When was the GPS system made available for civilian use?

• In the 1980s

• In the 2000s

• In the 1970s

• In the 1990s

How many satellites were originally used to run the GPS system?

• 18

• 30

• 12

• 24

What is one of the life-saving applications of GPS mentioned in the transcript?

• Monitoring air pollution

• Locating emergency service beacons

• Finding lost pets

• Tracking wildlife