Brentwood International

Engineers have created a new fingernail-size chip that can hold 1 trillion bytes (a terabyte) of data -- 50 times the capacity of today's best silicon-based chip technologies.   The engineers, from North Carolina State University, said their nanostructured Ni-MgO system can store up to 20 high-definition DVDs or 250 million pages of text, "far exceeding the storage capacities of today's computer memory systems."   

Working at the nanoscale, the engineers added metal nickel to magnesium oxide, a ceramic. The resulting material contained clusters of nickel atoms no bigger than 10 square nanometers -- a pinhead has a diameter of 1 million nanometers. The discovery represents a 90% size reduction compared with today's techniques, and an advancement that could boost computer storage capacity.

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