Description of Resource:
A hard disk uses rigid rotating platters. It stores and retrieves digital data from a planar magnetic surface. Information is written to the disk by transmitting an electromagnetic flux through an antenna or 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 in a reverse manner, as the magnetic fields cause electrical change in the coil or read head that passes over it.
Address:
United States
Website Url:
Is there a fee:
No
Sector:
Public or private:
Public
Website or physical archive:
Website only