Data Recovery Glossary > Head

Head is a small electromagnetic coil and magnetic pole used to used and write data onto a hard disk. It is also known as read/write head. However a hard disk can have more than one head. A head read and write binary data on the spinning hard disk platters. Head is always associated with the term head crash. Head crash is the condition in which head smash with the surface of the platter. Head crash is very disastrous and leads to large amount of data loss. Head crash is caused by mechanical failure or heavy shaking of the disk drive.

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