technoguy

A hard disk drive (HDD, or also hard drive or the now-obsolete usage hard file) is a non-volatile data storage device that stores data on a magnetic surface layered onto hard disk platters.

johnny_dev

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sennydell

The data is read from disk by detecting the magnetization transitions and decoding of the data originally written.Save the data on your hard disk by magnetizing ferromagnetic material directional. Sequential changes in the direction of magnetization are models of binary data bits.

Delia

Hard disk is a magical magnetic disk mounted permanently in a drive unit.

rosiefloria

It's nice question. hard-disk is a component of a computer which is used to store a data on it. There are various type of hard disk like sata HDD,pata HDD. It is also available in different type of size.

jjackson

which hard disk is best for my p4 computer.. sata HDD or pata HDD.
currently i am using portable hard disk..

pcworld

The main disk inside a computer used for storing programs and information. It is hard because it is metal. See floppy disk.