Detailed Explanation:

Answer: Option 4 — 1, 2 and 3

GPS (Global Positioning System) is a satellite-based navigation system that provides precise geolocation and time information, making it useful across diverse applications beyond just navigation.

✅ Statement 1 – Correct: GPS is integral to mobile phone operations for location tracking, navigation apps, and location-based services like ride-hailing and food delivery.
✅ Statement 2 – Correct: GPS provides precise time-stamping for banking transactions, ensuring accurate record-keeping and synchronization across banking networks, and enables ATM location services.
✅ Statement 3 – Correct: GPS is crucial for synchronizing power grid operations by providing accurate time stamps for measurements, which is essential for grid stability and preventing blackouts.

📝 Short Notes: GPS Technology Applications

• GPS (Global Positioning System): A satellite-based navigation system owned by the US government, consisting of 24+ satellites orbiting Earth.
• Primary Function: Provides geolocation (latitude, longitude, altitude) and precise time information to GPS receivers anywhere on Earth.
• Timing Applications: GPS satellites carry atomic clocks that provide nanosecond-level time accuracy, critical for telecommunications, banking, power grids, and stock markets.
• Navigation Uses: Aviation, maritime, vehicle navigation, surveying, mapping, and military operations.
• Location-Based Services: Mobile apps, emergency services (911/112), asset tracking, agriculture (precision farming), and weather forecasting.
• Other Global Systems: GLONASS (Russia), Galileo (EU), BeiDou (China), and NavIC/IRNSS (India's regional system).