The first computer built entirely with carbon nanotubes has been unveiled, opening the door to a new generation of digital devices.
"Cedric" is only a basic prototype but could be developed into a machine which is smaller, faster and more efficient than today's silicon models.
Nanotubes have long been touted as the heir to silicon's throne, but building a working computer has proven awkward.
The breakthrough by Stanford University engineers is published in Nature.
The story is here: http://www.bbc.co.uk/news/science-environment-24232896