a. The Winchester or hard disk drives can store much more data than what can be stored on a floppy diskette.
b. Hard disks come sealed and they cannot be removed or changed like floppy diskettes.
c. Often floppy disk system is used in conjunction with the Winchester disk system.
d. This makes for an ideal system for secondary storage.

A

c a b d

B

c b d a

C

b a c d

D

a b c d.