Terabyte Totally Explained

Everything about Terabyte totally explained

A terabyte (derived from the prefix tera- and commonly abbreviated TB) is a measurement term for data storage capacity. The value of a terabyte based upon a decimal radix (base 10) is defined as one trillion (short scale) bytes, or 1000 gigabytes.
The number of bytes in a terabyte is sometimes stated to be approximately 1.0995 x 10¹². This difference arises from a conflict between the long standing tradition of using binary prefixes and base 2 in the computer world, and the more popular decimal (SI) standard adopted widely both within and without the computer industry. Standards organizations such as IEC, IEEE and ISO recommend to use the alternative term tebibyte (TiB) to signify the traditional measure of 1024⁴ bytes, or 1024 gibibytes, leading to the following definitions:

According to the SI standard usage, a terabyte (TB) contains 1,000,000,000,000 bytes = 1000⁴ or 10¹² bytes.

According to binary arithmetic, a tebibyte contains 1,099,511,627,776 bytes = 1024⁴ or 2⁴⁰ bytes. Ambiguity can be reduced by avoiding the use of the term "terabyte" when the binary meaning is intended. The capacities of computer storage devices are typically advertised using their SI standard values, but the capacities reported by software operating systems usually uses the binary values.

Terabytes in use

Wal-Mart's data warehouse in Middletown, Connecticut contains 500 terabytes of data as of 2004.

The U.S. Library of Congress Web Capture team has claimed that "as of May 2007, the Library has collected more than 70 terabytes of data"

Ancestry.com claims approximately 600 terabytes of genealogical data with the inclusion of US Census data from 1790 to 1930.

YouTube offices hold over 45 terabytes of user-submitted videos.Further Information

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