IoT is talked talked and talked about (aka it is a buzz word), but examples are hard to come by.
Some very basic context: IoT stands for Internet of Things, which is about computers, talking to computers and doing stuff without humans.
Here is the example:
Immagine, you kid had been hit by a car and was just put in an ambulance. You want that ambulance to fly. With IoT the ambulance system could communicate with the traffic system and make sure every red light is actually green, allowing the ambulance to go full speed all the time might be the difference between life and death.