In our crew a little updating. And small in the literal sense of the word. This is the Raspberry Pi 2 microcomputer. It's the size of a credit card. But despite the diminutive size, the characteristics are quite adult. Quad core Broadcom 2836 processor that runs at 1 GHz, 1 GB RAM, graphics with support for OpenGL and processing of 1080p video, 4 USB ports, Ethernet port 10/100 Mbit and above all, fun. Is "raspberry pie" priced on $35 value. It agreed to become a volunteer in our experiments. What? Will cover later.