Hard disk

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

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A hard disk uses rigid rotating platters (disks). Each platter has a planar magnetic surface on which digital data may be stored. Information is written to the disk by transmitting an electromagnetic flux through an antenna or read-write head that is very close to a magnetic material, which in turn changes its polarization due to the flux. The information can be read back by a read-write head because the magnetic fields cause electrical change in the read-write head as it passes over a platter.

Non-volatile: redirect non-volatile memory...

Data storage device: In computing, a data storage device—as the name implies—is a device for storing data. It usually refers to permanent (non-volatile) storage, that is, the data will remain stored when power is removed from the device; unlike semiconductor RAM. Recording can be done mechanically, magnetica...

Magnetic: REDIRECT Magnetism...

Hard disk related Images and Photos (experimental)

Hard Way, The (DVD)	Hard Ball	Hard Rain	Hard Easy, The (DVD)
Hard, Fast & Beautiful	Hard Boiled	Hard Contract	Hard Fi - Photo
Hard to Get	Hard To Get (DVD)	Hard, Fast & Beautiful (1951) (DVD)	Die Hard