Photos: The mouse (and even better ideas) that roared 40 years ago

Engelbart kicked off the 1968 demo by asking: "If in your office, you as an intellectual worker were supplied with a computer display backed up by a computer that was alive for you all day and was instantly...responsive to every action you had, how much value could you derive from that? Well this basically characterizes what we've been pursuing for many years in what we call the Augmented Human Intellect Research Center at Stanford Research Institute."

Here, he demonstrates cut and paste functions.

Photo by Scott Ard/CNET Networks

Caption by Scott Ard