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Understanding IDE Hard Disks
January 2nd, 2008
Hard disks or sometimes called hard drives allow the storage of huge amounts of data on an electromagnetically charged surface or set of surfaces. A hard disk is actually composed of a stack of disks similar to old phonograph records where data is recorded in concentric circles known as tracks. The disk drive head records and reads information stored on the tracks. There are two heads located on both sides of a disk that either reads or writes data as the disk is spinning. Every read or write event needs for the data to be located which is known as seek operation. Hard disks come with varying speed and mapped to logical block address (LBA) which is commonly found in larger hard drives.