Seagate has launched the Momentus 5400 PSD laptop-use hybrid hard drives, featuring 256MB of embedded Flash memory for faster boot-up and better system performance. "What you do is take a logical address of a hard disk drive - say, sector 0," Barnetson illustrated for us, "and rather than having it reside on magnetic media, you say it now resides on Flash media. Any operations that are done to it, whether they be read or write, are not so much cached as they are pinned, or physically moved from the magnetic media over to the Flash memory." A sector which contains frequently accessed files or other elements, such as a FAT table, could be pinned to Flash memory for faster read and write performance, he said.
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