Sector Gap

Sectors consist of fixed blocks of storage space that usually contain 512 bytes of data. An equal number of sectors are written to each track on a floppy diskette, hard disk drive, and most storage devices, however, the circumference of the outside tracks is much larger than the circumference of the inside tracks. For this reason, much of the storage space is wasted on some storage devices, however, modern hard disk drives have eliminated much of this waste through the use of advanced data storage mapping