IoT stands for the Internet of Things, which refers to the billions of physical objects or "things" connected to the internet, all collecting and exchanging data with other devices and systems over the internet. IoT devices are hardware devices, such as sensors, gadgets, appliances, and other machines that collect and exchange data over the internet. They are programmed for certain applications and can be embedded into other IoT devices. IoT devices have both industrial and consumer uses and are typically integrated into other tools such as mobile devices, industrial equipment, and medical devices. Some examples of IoT devices include:

• Smart home devices: These include devices and appliances such as lighting fixtures, thermostats, home security systems, cameras, and other home appliances that support one or more common ecosystems and can be controlled via devices associated with that ecosystem, such as smartphones and smart speakers.

• Connected vehicles: IoT devices can be used in vehicles to provide real-time data for industrial or enterprise use cases.

• Wearable technology: IoT devices can be used in wearable technology such as smartwatches and fitness trackers to collect and exchange data over the internet.

• Connected health devices: IoT devices can be used in healthcare systems to monitor patients remotely and provide real-time data to healthcare providers.

• Industrial IoT devices: These are edge devices designed for businesses and can be used in smart cities. They are typically geared toward maintaining a facility or improving operational efficiency and can include smart locks, smart thermostats, smart lighting, and smart security.

IoT devices are programmed for certain applications and can transmit data over the internet or other networks. They can be embedded into other mobile devices, industrial equipment, environmental sensors, medical devices, and more. Increasingly, IoT devices are using AI and machine learning to bring intelligence and autonomy to systems and processes, such as autonomous driving, industrial smart manufacturing, medical equipment, and home automation.