IoT (Internet of Things) refers to the network of physical devices, vehicles, buildings and other items embedded with electronics, software, sensors and connectivity which enables these objects to connect and exchange data with each other and with the external environment. The IoT allows for the collection and analysis of data from these connected devices in order to gain insights and make decisions.

IoT devices can range from simple sensors and actuators to more complex devices such as smart phones, industrial equipment, and medical devices. These devices can be connected to the Internet through various means, including Wi-Fi, Bluetooth, and cellular networks. They can also be connected through specialized networks, such as Zigbee and Z-Wave.