Tuesday, September 15, 2015

Hard disk

                      HARD DISK

 

 Hard disk definition    : A   hard disk is part of a unit, often called a "disk drive," "hard drive, that stores and provides relatively quick access to large amounts of data on an electromagnetically charged surface .A magnetic disk on which you can store computer data. The termhard is used to distinguish it from a soft, disk. Hard disks hold more data and are faster than floppy disks. A hard disk, for example, can store anywhere from 10 to more than 100 gigabytes.

A single hard disk usually consists of several platters. Each platter requires two read/write heads, one for each  side.


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