Work cat.: The MagPi, October 2012: t.p. (Raspberry Pi; the Raspberry Pi computer)

2012043041: Programming the raspberry Pi, 2012.

Inspec, viewed Feb. 1, 2013 (uncontrolled indexing: Raspberry Pi)

Raspberrypi.org WWW site, Feb. 1, 2013 (The Raspberry Pi is a credit-card sized computer that plugs into your TV and a keyboard. It's a capable little PC which can be used for many of the things that your desktop PC does, like spreadsheets, word-processing and games. It also plays high-definition video)

BBC website, 30 January 2013: News, 29 January 2013 page (schools around the UK are to be given 15,000 free Raspberry Pi microcomputers)