The document discusses the Internet of Things (IoT). It defines IoT as the network of physical objects embedded with sensors, software and network connectivity that allows them to collect and exchange data. IoT enables objects to be sensed and controlled remotely across existing network infrastructure. The document provides a brief history of IoT and discusses how IoT works using technologies like RFID, sensors, smart technology and nano technology. It outlines several applications of IoT like domestic alarms, intelligent shopping systems and home automation. The document concludes that using domestic alarms with IoT allows easy and secure monitoring of homes, offices and industries.