There is no better way to learn about PCs and electronics than building your own computer. The Computer Kit Touch Kit comes with everything you need to build a touchscreen computer and hack it. Users also get to make apps, games, and music in multiple programming languages. The touchscreen shows students how touch controls work on devices like smartphones.
The computer has a Raspberry Pi as its brain and a 10.1″ touchscreen display. The battery lasts up to 3 hours. Sets you back under $280 at this time.