A graphic demonstrating the difference between conventional drives and patterned media drives.
In conventional drives, the bits, which store data in a drive and are magnetized in a particular direction, touch each other. Reducing the size of the magnetic grains inside the bits and the bits could lead to bit flipping, or data corruption.
In patterned media, the bits are isolated from each other and smaller, reducing cross talk and data corruption. The dot pattern, however, needs to be drawn through lithography, which is often expensive.
Hitachi Global Storage Technologies
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Bill Detwiler is Editor in Chief of TechRepublic and Tech Pro Research and the host of Cracking Open, CNET and TechRepublic's popular online show. Prior to joining TechRepublic in 2000, Bill was an IT manager, database administrator, and desktop support specialist in the social research and energy industries. He has bachelor's and master's degrees from the University of Louisville, where he has also lectured on computer crime and crime prevention.