The document introduces the BBC micro:bit, a pocket-sized computer used to learn about how software and hardware work together. It has an LED display, buttons, and sensors that allow it to interact with its environment when programmed. The document describes the micro:bit's out-of-the-box experience which includes interactive games launched from its LED display by pressing buttons or shaking the device. It also provides links to key websites for using the micro:bit platform and coding environments, as well as examples of basic projects and features that can be programmed on the micro:bit.