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National Teaching and Learning Change ProgrammeInformation and Communication Technology: Dictionary

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 storeCD driveCD-ROMcylinderdiskfile allocation table (FAT)floppy diskhard driveseek timetrackdisk formatformat
Term sub categories
Hardware › storage
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