What is the difference between Hard Disk Drive and Hard Disk?
Most of the people use these words interchangeably, without knowing the meaning of both. Technically, Hard Disk contains the data and Hard Disk Drive which controls the motion of the hard disks. This confusion arises because Hard Disk Drive and Hard Disk are placed at same case, but in case of Floppy Disk Drive and Floppy Disk, they are separate.