The disc additionally of 2 types:-

  • Floppy disk
  • Hard disk

  • Floppy disk

Floppy disk may be a spherical flat piece of versatile plastic. diskette is coated by an sq. plastic jacket cowl. The jacket cowl offers handling protection to the disk surface and reads/write head.


Floppy disks area unit supposed as a result of they're made from versatile plastic plates, which might bend, not arduous plastic. diskette is additionally referred to as floppies or diskettes.
FLOPPY  DISK  DRIVE

Floppy disk drive may be a drive that's accustomed to read/write information from diskette. The drive encompasses a spindle that rotates the disk and read/write head which might move in or resolute position the read/write heads on any track of the disk surface.
  • Hard disk
The fixed disk is that the primary on-line secondary device for many laptop systems these days.

The different diskette that is formed of versatile plastic, hard metal. The fixed disk comes in any size starting from one to fourteen inches diameter.
The fixed disk is additionally divided into 3 types:-
  1. Zip/Bernoulli disk
  2. Disk pack
  3. Winchester disk

1.  Zip/Bernoulli  disk
Zip/Bernoulli disk during this form of single fixed disk platter is caused in a very plastic cartridge. A usually used nothing disk is to in. size, having a storage capability of regarding a hundred MB. Its drive is named a zipper drive.



              Nothing drive is also transportable or mounted sort. The mounted sort may be a part of the pc system that for well connected to that. And transportable sort isn't mounted with the pc system if we would like to use the nothing drive then connect with the pc system for a minute and when the work finished then disconnect from the pc.

2.  Disk pack

A pack consists of multiple fixed disk platters mounted on one central shaft. All the disk of the pack revolves along at constant speed. As explicit before, the drive of a pack encompasses a separate read/write head for every disk surface, except the uppermost and lower surface of the nethermost disk.
                                        The uppermost and nethermost disk surfaces don't seem to be used for information recording within the disk. Disk packs area unit hold on in plastic cases.

3.  Winchester disk
A Winchester disk may be a Disk Stack. Another term for the fixed disk drive. The term Winchester comes from Associate in Nursing's early form of drive developed by IBM that had 30MB of computer storage and 30MB of removable storage; thus its inventors referred to as it a Winchester in honor of its 30/30 rifle.