It is vastly more efficient to use much slower processors, in terms of the power per computation, and combine those, as opposed to trying to make one go like a bat out of hell.

Whether that barrier happens in 2016, or 2020, or 2024 is under debate.

Despite the speeds, it will have a lower power density than in some chips found in today's desktops.

General Electric, NBC's parent, is one of the largest corporations in the world, with an anti-labor history of outsourcing jobs and with financial links to military and nuclear power industries.

You literally tune the system from the atoms and molecules to the software at the other end to get the maximum possible benefits.

She was exactly like who she said she was ... except the picture. She has very curly hair, but it was pulled straight when we met.