Chapter 26 of 33

Internet of Things (IoT)

How everyday physical devices connect to the internet to collect and exchange data.

📖 ~4 min read 💻 RRB NTPC / Group D — Computer Awareness

What Is IoT?

The Internet of Things refers to a network of physical devices (sensors, appliances, vehicles) embedded with software and connectivity, allowing them to collect and exchange data over the internet.

Examples of IoT Devices

  • Smart home devices (smart bulbs, smart thermostats, smart locks)
  • Wearable fitness trackers and smartwatches
  • Smart agriculture sensors (soil moisture, weather monitoring)
  • Connected vehicles and traffic management systems

Key Components of an IoT System

ComponentRole
Sensors/DevicesCollect real-world data
ConnectivityTransmits data (Wi-Fi, Bluetooth, cellular)
Data ProcessingAnalyses collected data (often via cloud computing)
User InterfaceAllows users to monitor/control the device

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