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Technology Stocks : QUANTUM
QNTM 8.300-4.5%Dec 26 9:30 AM EST
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To: Chuck Bleakney who wrote (4814)11/11/1997 9:46:00 AM
From: Chuck Bleakney  Read Replies (1) of 9124
 
I'd just like to clear the air a little on some of the technology issues. So here's a brief description of some of the more popular terms that have been floating around lately.

MR - MagnetoResistive - A term that describes a phenomenon of physics
in specially prepared semiconductive material used to make magnetic heads for reading and writing magnetic media.

GMR - Giant MagnetoResistive - Similar to MR but with enhanced performance on smaller magnetic fields. This provides both enhanced
solutions as well as enhanced problems.

NFR - Near Field Recording - A recording technique that uses a standard recording head and a highly focused laser togeather to record and read data from suitable media. The laser provides the precision to make very small magentic domains needed to get the areal density.
The standard recording head simply provides a magnetic flux field that is less than required to "flip" a magnetic domain, the energy provided by the laser causes the domain to then "flip" whichever way the magnetic field is pushing it. Because it requires both magnetic and optical properties, the optical constraints will limit it to a single platter device for the near future. I tend to think of it as very high capacity CD-ROM drive.

Chuck
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