A tablet with a hand crank

Marvell Semiconductor and One Laptop per Child, a non-profit organization dedicated to helping every child in the world gain access to a modern education, have demonstrated a version of XO 3.0 -- a low-cost, low-power, rugged tablet computer designed for classrooms around the globe -- at the 2012 International Consumer Electronics Show. The XO 3.0 is the only tablet that can be charged directly by solar panels, hand cranks and other alternative power sources, a key for educational use in areas without a reliable power grid. The tablet can run either Linux or Android operating systems. It also features an updated Pixel Qi sunlight-readable display and a choice of laptop covers, including one with a built-in solar panel.