Cmrr Report Number 27, Winter 2007 Introduction
نویسندگان
چکیده
Magnetic recording currently is the major data storage technology. Conventional magnetic media implement continuous magnetic layers consisting of microscopic grains. Such media have constraints of thermal instability due to the superparamagnetic effect, which occurs when the magnetic grains become too small. The superparamagnetic effect may set the fundamental limit of about 0.5Tbit/inon achievable densities of storage. Overcoming this constraint is one of the key challenges in the modern hard drive industry.
منابع مشابه
Cmrr Report Number 28, Summer 2007 Introduction
In current HDD’s with disks covered with a continuous magnetic coating, a bit can be written anywhere on the disk. Of course, there is some sanity in the placement of these bits. This sanity is enforced by servo markers and sector headers which define the positions of tracks and sectors. In writing, once the position of a sector and a track are found, the placement of the bits on this track is ...
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