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8th February 2012, 08:08 | #1 |
[M] Reviewer Join Date: May 2010 Location: Romania
Posts: 147,798
| Heat Key To Faster HDDs...Hundreds of Times Faster Physicists have discovered a new method of recording data on hard drives that could potentially make mechanical hard drives hundreds of times faster (in terms of performance). Heat holds the key. A hard disk drive is a magnetic storage device, which, unlike magnetic tapes, allows random access. Its recording surfaces consist of hundreds of billions of tiny portions that can be magnetized in a particular polar direction to represent 0s or 1s. To create meaningful arrangements of these portions (bytes), the recording heads apply an external magnetic field to flip their polarities. A team of researchers led by Thomas Ostler at the University of York, UK concluded that the process of flipping the polarities of these tiny portions can be greatly expedited using short bursts of heat. It has been believed that heat could only assist in remagnetization, when used in conjunction with a magnetic field. Research shows that this can also be achieved using a very, very precise amount of heat generated by beaming a fine laser for less than a trillionth of a second, which momentarily raises its temperature by 800 °C. The results of this study was published here. http://www.nature.com/ncomms/journal...comms1666.html |
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