Definitions for exa
This page provides all possible meanings and translations of the word exa
The New Hacker's Dictionary
[SI] See quantifiers.
Exa is a unit prefix in the metric system denoting 1018 or 1000000000000000000. It was added to the International System of Units in 1975, and has the unit symbol E. Exa comes from the Greek ἕξ, used as a prefix ἑξά-, meaning six, because it is equal to 10006. Examples: The total storage needed by Google Mail as of April 2012, ignoring backups and compression, is more than an exabyte. 1 EeV = 1018 electronvolts = 0.1602 joule 1 exasecond is approximately 32 billion years 1 exametre is approximately 110 light years 0.43 Es ≈ the approximate age of the Universe 1.6 Em—172 ± 12.5 light years—Diameter of Omega Centauri
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