A magnetic disk on which you can store data. The term hard disk is used to distinguish it from a soft, or floppy disk.There are two types of hard disk:
1.Hard disks fixed internally
2. External hard disks fixed to USB
![](http://www.fahad.com/pics/fujitsu_160gb_300mbs_hard_disk.jpg)
FLOPPY DISK
A soft magnetic disk. In contrast to hard disk, floppy disk are portable, because you can remove them from a disk drive. Floppy disk are slower to acess than hard disk and have less storage capacity than hard disk.
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