"Braben has developed a tiny USB stick PC that has a HDMI port in one end and a USB port on the other. You plug it into a HDMI socket and then connect a keyboard via the USB port giving you a fully functioning machine running a version of Linux. The cost? $25."
"Providing a complete installation of Moodle on a USB stick can help to increase confidence and enables users to try things out for themselves without anyone knowing what they're attempting to do!"