What is "tebibyte"

n. (context uncommon SI English) Strictly, 2⁴⁰ (1,099,511,627,776) bytes, as opposed to a terabyte.

The tebibyte is a multiple of the unit byte for digital information. It is a member of the set of units with binary prefixes defined by the International Electrotechnical Commission (IEC). Its unit symbol is TiB.

The prefix tebi (symbol Ti) represents multiplication by 1024, therefore:

The tebibyte is closely related to the terabyte (TB), which is defined as 10 bytes = . It follows that one tebibyte (1 TiB) is approximately equal to 1.1 TB. In some contexts, the terabyte has been used as a synonym for tebibyte. (see Consumer confusion).