Terabyte
From Wikipedia, the free encyclopedia.
| Multiples of bytes | ||||||
|---|---|---|---|---|---|---|
| SI prefix | Binary prefixes | |||||
| Name | Symbol | Multiple | Name | Symbol | Multiple | |
| kilobyte | kB | 103 (or 210) | kibibyte | KiB | 210 | |
| megabyte | MB | 106 (or 220) | mebibyte | MiB | 220 | |
| gigabyte | GB | 109 (or 230) | gibibyte | GiB | 230 | |
| terabyte | TB | 1012 (or 240) | tebibyte | TiB | 240 | |
| petabyte | PB | 1015 (or 250) | pebibyte | PiB | 250 | |
| exabyte | EB | 1018 (or 260) | exbibyte | EiB | 260 | |
| zettabyte | ZB | 1021 (or 270) | ||||
| yottabyte | YB | 1024 (or 280) | ||||
A terabyte (derived from the SI prefix tera-) is a unit of information or computer storage equal to one trillion (one long scale billion) bytes. It is commonly abbreviated TB.
Because of irregularities in using the binary prefix in the definition and usage of the kilobyte, the exact number in common practice could be either one of the following:
- 1 000 000 000 000 bytes - 10004 or 1012.
- 1 099 511 627 776 bytes - 10244 or 240. This capacity may be expressed unambiguously as a tebibyte.
Terabytes in use
- A 'typical' video store may contain about 8 terabytes of video data.
- The books in the the U.S. Library of Congress contain approximately 20 terabytes of text.
Terabyte is also the name of a Macromedia Flash web design company. Terabyte is based in Auckland, New Zealand.
See also