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All issuesVolume 304, Issue 2IT NewsStorage

Tebibyte (TiB)

SearchStorage, Friday, July 14,2023

A tebibyte (TiB) is a unit of measure used to describe computing capacity. The prefix tebi comes from the binary system for measuring data capacity. That system is based on powers of two.

One tebibyte equals 240 or 1,099,511,627,776 bytes.

The International Electrotechnical Commission (IEC) created the term tebibyte and the other binary prefixes -- kibi, mebi, gibi, pebi, exbi, zebi and yobi -- in 1998. In the early days of computing, before the binary prefixes were created, the metric prefixes in the International System of Units (SI) referred to both the power-of-10 multipliers in the decimal system of measurement and the binary system's power-of-two multipliers. The SI prefixes include kilo, mega, giga, tera, peta, exa, zetta and yotta. Today they are referred to as the decimal system of prefixes.

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