The document discusses the Internet of Things (IoT), which refers to a network of internet-connected devices that can collect and exchange data. The IoT ecosystem allows entities to connect to and control IoT devices using remote devices like smartphones over a network. It is estimated that there will be 24 billion IoT devices installed by 2020, with $6 trillion invested in IoT solutions over the next five years, generating $13 trillion in return by 2025. The IoT is expected to transform industries like manufacturing, transportation, defense, retail, healthcare and more through the use of connected devices and sensors.