Once upon a time, computers were pretty much the only devices that connected to the internet. These days, that idea is a fairytale.The reality is an incredible number of products are now connected to the web, from refrigerators to watches, clothing, cars, thermostats, light bulbs, and alarm systems. By 2020, an estimated 20-plus billion items will belong to the so-called “Internet of Things” (IoT).

Source: How the Internet of Things Inspired a New Startup Niche | Entrepreneur