(computer science) the usable capacity of a disk drive; the amount of space that is left after the sector headings and boundary definitions and timing information have been added by formatting the disk
The actual capacity available to store data in a mass storage device. The formatted capacity is the gross capacity minus the capacity taken up by the overhead data required for formatting the media.
Formatted Capacity-the amount of room left to store data on a disk after writing sector headers, boundary definitions, and timing information during a format operation.