A floppy disk is a magnetic storage medium that uses a flexible diskette made of thin plastic enclosed in a protective casing. Earlier they enabled data to be transported from one PC to other very. Today, floppies are a little too small in capacity to be efficient anymore. They have been replaced by USB drives. Floppy diskettes were in sizes 51⁄4 inches and 31⁄2 inches. A floppy drive is used to read and write information to and from these diskettes. The advantage of these drives is that they allow portability of data but they are limited in storage capacity. They can store only about 1.44 MB.
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