RASPBERRY PI
The Raspberry Pi is a very powerful Linux computer that's not much bigger than a credit card. Plug it into a TV or monitor and a keyboard and you have a fully-functional computer for little more than the cost of a week's overpriced lattes. It's simple enough for education projects, yet has enough horsepower for serious applications. Use it to learn coding, build a retro arcade machine, create a privacy-protecting router, or even transmit your own FM radio broadcast. What will you make?