The document defines and provides an example of the Internet of Things (IoT). It explains that IoT involves connecting smart devices to the internet so that they can share data and communicate with each other intelligently. As an example, it describes how if a flight was delayed by 3 hours, this information could be shared between devices like an alarm clock, coffee maker, lights, and water heater to automatically adjust their functions by 20 minutes. The IoT allows millions and billions of devices to talk to each other and work together efficiently.