A diskette is a small magnetic disk that used to be used for storing computer data and programs.
What are diskettes used for?
A disk, often called a floppy disk, is used to store files and carry them from one computer to another by using the floppy drive. The floppy drive reads the disk (or diskette) and the user is then able to open and change the files saved on the disk.
What are floppy disks good for?
One of the main advantages of floppy disks is that they are relatively small and portable. 3.5-inch floppy disks are smaller than CDs and do not need to be placed in a case for transport. The outside of a floppy disk is a plastic casing that protects the disk inside.