The document presents a summary of domain specific IoT systems by Ms. R. R. Mahalle. It introduces IoT, how IoT works based on M2M communication, and common IoT protocols like MQTT and CoAP. Applications of IoT are discussed for agriculture, smart cities, health, home automation and more. K-nearest neighbors and naive bayes algorithms are described for computing IoT data. The future scope of IoT includes low power sensing, high efficiency connectivity, and reliable communication.