any division of quantity accepted as a standard of measurement or exchange

a small byte

a sequence of 8 bits (enough to represent one character of alphanumeric data) processed as a single unit of information

the minimum track length that can be assigned to store information; unless otherwise specified a sector of data consists of 512 bytes

(computer science) a sector or group of sectors that function as the smallest data unit permitted

a group of sectors on a magnetic disk that can be reserved for the use of a particular file