Today (9th December) is Computer's very own Mouse B'Day ever since Douglas Engelbart first demonstrate very first mouse made of wood and had just one button, he demonstrated it for working with computers as part of GUI (Graphic User Interface) and the date was 9 December 1968. A mouse is one integral part of computer system that has seen lesser development as compared to its sibling parts in today's computers. See for Videos and more reading - http://news.bbc.co.uk/2/hi/technology/7768481.stm Picture Credits - Maya Gorton