===== Computing ===== ==== Raspberry Pis ==== There are several Raspberry Pis (some 1B or 1B+ with 2 USBs, and some 2B with 4 USBs). They require an SD card to boot from. {{public:raspberry-pis-top.jpg?400|Picture of two Raspberry Pis, showing top}} Left: Pi 1B. Right: Pi 2B. {{public:raspberry-pis-bottom.jpg?400|Picture of two Raspberry Pis, showing bottom}} Left: Pi 1B. Right: Pi 2B. SD slots seen at bottom. Left: SD(?). Right: micro-SD.