The document discusses internet of things (IoT) platforms and the components of AWS IoT. It notes that by 2020 there will be 26 billion connected devices due to falling prices of sensors, processors and networks. IoT is expected to generate $11 trillion by 2025 and $20 trillion by 2035. The key components of an IoT platform discussed are device SDKs, device gateways, authentication, rules engines, device shadows, and device registries. AWS IoT is highlighted as an example platform.