Everything connected to the Internet that is not a computer. Some include mobile devices like phones and tablets. There are many iterations of IoT such as IIoT (Industrial Internet of Things), IoMT (Internet of Medical Things), etc. Automated light switches, thermostats, window shades, that refrigerator connected to the Internet are all examples of IoT. Businesses are now using IoT more than ever to automate many operations and the number of IoT devices on the Internet is still growing exponentially. All IoT devices use APIs to control their behavior.