The attraction of computing by magnets
AS THE transistors etched into computer chips approach their limits of miniaturisation over the coming years, they could be replaced by devices that use magnetism instead of electricity to store and manipulate digital data.
Magnetic storage devices known as magnetic random access memory (MRAM) already exist. But now Alexandra Imre and colleagues in the nanoengineering department at the University of Notre Dame in Indiana have shown that magnets around 0.1 micrometres across can be arranged to produce the basic building blocks of a processor chip... Click Here to Read More
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