This document discusses Internet of Things (IoT) and how it relates to big data. It begins with an overview of IoT, describing how physical objects can be connected to the internet through sensors and actuators. It then discusses IoT architecture, which involves edge analytics and cloud analytics. Next, it defines big data and its four V's (volume, velocity, variety, and veracity). It explains how IoT generates large amounts of data and describes how this data is stored, analyzed, and used. The document concludes that IoT data analytics is essential for managing complex IoT systems like smart cities.