a researcher at north carolina state university has developed a computer chip that can store an 1（空前的） amount of data – enough to hold an entire library's worth of information on a single chip. the new chip stems from（源于） a breakthrough in the use of nanodots（纳米点） , or nanoscale magnets, and represents a significant advance in computer-memory technology. "we have created magnetic nanodots that store one bit of information on each nanodot, allowing us to store over one billion pages of information in a chip that is one square inch," says dr. jay narayan, the john c. fan 2 chair professor of materials science and engineering at nc state and author of the research.
the breakthrough is that these nanodots are made of single, defect-free crystals（石英晶体，水晶） , creating magnetic 3 that are integrated（集成的，整合的） directly into a 4 electronic chip. these nanodots, which can be made uniformly as small as six nanometers in diameter（直径） , are all 5 oriented in the same way – allowing programmers to reliably read and write data to the chips.
the chips themselves can be manufactured cost-effectively（节约成本地） , but the next step is to develop magnetic packaging that will enable users to take advantage of the chips – using something, such as laser technology, that can effectively interact with the nanodots.
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