Raspberry Pi

Raspberry Pi is a single-board computer designed to be very cheap and compact, designed in a no-frills manner and based on free, open-source software, designed for educational use. It has been used as the basis for a number of interesting devices. Most Pis use microSD storage.

Links

 * Wikipedia article
 * Official site
 * Pinouts
 * Onion-Pi (Tor proxy server built with Raspberry Pi)
 * Raspberry Pi 101: What is the Pi Anyway?
 * Raspberry Pi 2 on sale