During my school days, I stored all my bioligy/math/physics/chemistry courses in my HP48Gx… I loved that device… it even had a small Tetris to get through boring math classes. The Japanese company called Kokuyo, specialist in office equipment of the latest generation, presents the newest anti-cheating equipment… well, it’s not really meant for that but anyway. thanks to the Memoribo you can enter more questions and answers. All tests are multiple-choice in Japan (the worst type of written assessment… but the best for the Japanese government to create sheep as citizens), and so you can input questions and their answers and then hit the shuffle button to start a revising session. There are even tests available for download on the manufacturer’s site. Dimensions are 98x15x40mm and it weighs 50g.