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November 22, 2004

Nanomechanical memory demoed

A bit -- the basic unit of computer information -- can be made from anything that can be switched between two states, which represent 1 and 0.

Computer chips use the presence and absence of electric current to represent 1 and 0; disk drives use positive and negative magnetic poles. The 19th- and early 20th-century precursors to today's computers used mechanical rather than electrical elements to store and process data.

The rise of nanotechnology has led many researchers to revisit mechanical computing. Nanotechnology has yielded microscopic materials that range from microns, or thousandths of a millimeter -- around cell size -- to nanometers, or millionths of a millimeter -- the realm of molecules. "It turns out that... nanomechanical memory cells, due to their size and speed, could outperform their counterparts in magnetoelectric systems," said Pritiraj Mohanty, an assistant professor of physics at Boston University.

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Posted by thinkingmachine at November 22, 2004 05:29 PM

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