The document discusses the Raspberry Pi, a small, low-cost computer created by the Raspberry Pi Foundation to promote computer science education. It provides an overview of the Raspberry Pi's history and models, its use for IoT applications, advantages like low cost and multiple interfaces, alternatives like Orange Pi and BeagleBone Black, and concludes that the Raspberry Pi will play a key role in future IoT due to its edge computing capabilities and ability to function as both a computer and microcontroller.