exabit

exabit A unit of information equal to 1000 petabits or 1018 bits. A bit is a unit of measurement of information (from Binary + digIT); the amount of information in a system having two equiprobable states: 'There are eight bits in a byte'.
Found on http://www.wordinfo.info/words/index/info/view_unit/787/

Exabit

The exabit is a multiple of the unit bit for digital information or computer storage. The prefix exa (symbol E) is defined in the International System of Units (SI) as a multiplier of 1018 (1 quintillion, short scale), and therefore The exabit has the unit symbol Ebit or Eb. The exabit is closely related to the exbibit, a unit multiple derived fro...
Found on http://en.wikipedia.org/wiki/Exabit
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