Exabyte
En exabyte er 1018 byte = 1 000 000 000 000 000 000 byte. Forkortes EB.
Byte-størrelser
| |||||
|---|---|---|---|---|---|
| Decimal præfiks | Binært præfiks | ||||
| Værdi | Navn | Værdi | Navn | ||
| 10001 = 103 | kilobyte | (kB) | 10241 = 210 = 1,024·103 | kibibyte | (KiB) |
| 10002 = 106 | megabyte | (MB) | 10242 = 220 ≈ 1,049·106 | mebibyte | (MiB) |
| 10003 = 109 | gigabyte | (GB) | 10243 = 230 ≈ 1,074·109 | gibibyte | (GiB) |
| 10004 = 1012 | terabyte | (TB) | 10244 = 240 ≈ 1,100·1012 | tebibyte | (TiB) |
| 10005 = 1015 | petabyte | (PB) | 10245 = 250 ≈ 1,126·1015 | pebibyte | (PiB) |
| 10006 = 1018 | exabyte | (EB) | 10246 = 260 ≈ 1,153·1018 | exbibyte | (EiB) |
| 10007 = 1021 | zettabyte | (ZB) | 10247 = 270 ≈ 1,181·1021 | zebibyte | (ZiB) |
| 10008 = 1024 | yottabyte | (YB) | 10248 = 280 ≈ 1,209·1024 | yobibyte | (YiB) |
En exabyte er 1018 byte = 1 000 000 000 000 000 000 byte. Forkortes EB.
Exa-præfikset betyder 1018, men har i computermæssig sammenhæng betydet 260. Exbi er et nyt præfiks, som betyder 260. IEC anbefaler at bruge betegnelse Exbibyte, når der beskrives datamængder, som er et multiplum af 260 byte.
Exabyte eksempler
- 5 EB: Alle ord udtalt af mennesker igennem hele historien, hvis nedskrevet og gemt i tekstformat.
- 246 EB: den samlede digitale lagerkapacitet i 2006
- 1 Million EB: den samlede digitale lagerkapacitet i 2014[1]
Referencer
- ^ The Expanding Digital Universe, IDC, marts 2007
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