It was only meant to be a prototype. But 40 years after the computer mouse first scrolled its way into the public consciousness, new touch-screen technology could be about to consign the mouse to the annals of history.
The computer mouse was the creation of Doug Engelbart and his team at the Stanford Research Institute in California, who needed a simple way of controlling their computers. The result was a carved wooden block mounted on wheels, with a long cable trailing out the back. One researcher nicknamed it a mouse, and the moniker stuck.
"We thought that when it had escaped out to the world it would have a more dignified name," said Mr Engelbart. "But it didn't."