Nano Computers

Here is an interesting discussion on nano computers.

"First suggested by Richard Feynman in 1959, the idea of nanotechnology, constructing at the atomic level, is now a major research topic worldwide. Theoreticians have already come up with designs for simple mechanical structures like bearings, hinges, gears and pumps, each made from a few collections of atoms. These currently exist only as computer simulations, and the race is on to fabricate the designs and prove that they can work."