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


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