Jun 20, 2010

HARD DISK Know Technology

Hard drive is a secondary storage device where data is stored as magnetic pulses on a rotating metal disc that is integrated. Data is stored in concentric circles called tracks. Each track is divided into several segments, known as sectors. To perform read and write data to and from disk, hard disk using the head to do it, which was in every dish. Head is the next move for sector-specific sector for operations performed on it. The time required to find the sector is called seek time. After finding the desired sector, the head will rotate to look for tracks. The time required to find the track is called latency.
Hard drive storage media which is designed to be used in storing data in a large capacity. The background of this case the application program that is not possible to be in a floppy disk and also require large file storage media such as an agency database. Not only that, the hard drive is also expected to offset the speed of access. The speed of a floppy disk when compared with normal, very much. This is because hard drives have different mechanisms and materials technology which of course is better than regular floppies. If no hard drive, can imagine how much should be provided to store data or store staffing an agency application program. This is certainly not efficient. Plus more time reading very slow when using the conventional disk storage media.
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