sector
On a disk, each track is divided into a number of equal-length blocks, called sectors. A sector is the smallest addressable portion of a track and is the smallest unit of data that is written to or read from a disk.
Related terms
backing store
CD drive
CD-ROM
cylinder
disk
file allocation table (FAT)
floppy disk
hard drive
seek time
track
disk format
format
Term sub categories
Hardware
storage
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