This document discusses Internet of Things (IoT) concepts including definitions and frameworks. It describes IoT as physical objects communicating over the internet using sensors, controllers and connectivity. A conceptual framework outlines data flow from sensor collection to analysis across six levels. Examples like a smart umbrella are provided. Reference architectures like Cisco's seven-layer model and Oracle's IoT architecture are examined, outlining their approaches to device, network and application functions in IoT. The document aims to provide an overview of key IoT concepts, frameworks and architectural views.