Google's Vint Cerf warns of 'digital Dark Age'

Vint Cerf, a "father of the internet", says he is worried that all the images and documents we have been saving on computers will eventually be lost. Currently a Google vice-president, he believes this could occur as hardware and software become obsolete. He fears that future generations will have little or no record of the 21st Century as we enter what he describes as a "digital Dark Age". Mr Cerf made his comments at a large science conference in San Jose.