At the moment, there are four members in the Beagle board family, each with unique features but all having the common goal of making technology accessible. The BBC and BBX share a similar expansion connector and offer media-handling capabilities. The BBW and BBB share a similar expansion connector and offer a low cost while using the PRUSS for custom peripherals and real-time options. While all the boards offer a good educational experience, this book will focus on the BBW and BBB.