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Chapter 1

What is IoT

5 min read6 sections
In this chapter · 6 sections
  1. A short history
  2. The layered architecture
  3. How a system works end to end
  4. Key characteristics of IoT devices
  5. Where IoT is used
  6. IoT and related terms

The Internet of Things (IoT) is a network of physical devices that sense the world, make decisions and act, while exchanging data over a network.

The Internet of Things (IoT) is a network of physical devices that sense the world, make decisions and act, while exchanging data over a network. A plant pot that measures soil moisture, sends it to your phone and switches on a pump is a complete IoT system.

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