Raspberry Pi: Hacking the world’s cheapest computer

 It may not be the prettiest, but the world’s smallest, cheapest personal computer is inspiring a wave of delightful DIY innovation among tech hobbyists across the planet.

With a price tag of just $25, the unassuming Raspberry Pi is an easily-programmable, open-source single board computer, about the size of a credit card, whose cost, size and low power requirements make it ideally suited for backyard inventors.