FROM PACKET SWITCHING TO THE CLOUD

摘要

Telecommunication engineers have always drawn a picture of a cloud to represent a network. Today, however, the cloud has taken on a new meaning, where IT becomes a utility, accessed and used in exactly the same on-demand way as we connect to the National Grid for electricity. Yet, only 50 years ago, this vision of universal access to an all-encompassing and powerful network would have been seen as nothing more than fanciful science fiction.