This document discusses applications of the Internet of Things (IoT) through a survey. It begins by defining IoT as the network of connected objects able to collect and exchange data using embedded sensors. The document then summarizes four key applications of IoT: smart homes, smart agriculture, smart cities, and smart industry. For each application, examples are provided of how IoT can be implemented such as home automation, environmental monitoring, traffic management, and machine maintenance. The survey finds that IoT has significant potential to improve efficiency and innovation across many sectors.