Fourty Year Old Computer Mouse Demo!

BBC is carrying on a tiny article and a video clip of Doug Engelbart, the inventor of the computer mouse, doing the first demo of the device that we have come to be a part of day to day computing.
The computer mouse is now 40 years old and Dr Engelbart used the mouse made of wood containing single button to demonstrate novel ways of working with computers on 9 December 1968. You will smile when you see the protruding scroll wheels!
Since BBC does not allow to embed here is the complete demo from Youtube.

Tags: Doug Engelbart, the inventor of the computer mouse