Atomic Scale Memory

maddugan writes "Technology Research News is reporting that researchers from the University of Wisconsin at Madison have put the theoretical to the test by using single silicon atoms to represent the 1s and 0s of computing. This is equivalent to storing the contents of 7,800 DVDs in one square inch of material."

Comments

Feh. Only ONE bit per atom...

[Mad Bad Rabbit]

Only half joking: Researchers at U.Michigan hope to
store up to 10 bits per atom, by using Rydberg states.

http://www.aip.org/enews/physnews/1999/split/pnu 42 9-2.htm

>:K

Eh?

[ShooterNeo]

This isn't actually very useful : what we want is atomic scale logic gates, not data storage. In fact I'd venture to say that this technology is NOT what we will be using in the future for extremely dense memory. Why? Because its 2 dimensional and requires an independent readout head (that is MECHANICAL). Making it work anywhere but a vacuum may be impossible. (though that is not a real problem : making a disk drive that has an internal vacuum is quite feasible) A solution that is thousands, even millions of times faster would be a system that reads itself : i.e. a 3 dimensional array of logic gates to form a molecular version of ram. In addition, you could cram far more bits per gram of material used for the media. (I can't say per square inch because that would be misleading) In addition, storage capacity is not what our computers need more of : its performance (especially in accessing all those gigs of storage).

karma whoring

[flollywebfrog]

In 1959 Richard Feynman said that all the information accumulated in all the books in the world could theoretically fit in a cube 1/200th of an inch on a side.

You can read the transcipt of the speech from when he made that prediction.

Feynman worked on developing the atomic bomb, he won a nobel in physics and is known as much for his scientific research as for his story telling.