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petabyte

 - 3 dictionary results
pet·a·byte   (pět'ə-bīt)   
n.  
  1. A unit of computer memory or data storage capacity equal to 1,024 terabytes (250 bytes).

  2. One quadrillion bytes.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Science Dictionary
petabyte   (pět'ə-bīt)  Pronunciation Key 
  1. A unit of computer memory or data storage capacity equal to 1,024 terabytes (250 bytes).

  2. One quadrillion bytes. See Note at megabyte.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Computing Dictionary

petabyte unit
2^50 = 1,125,899,906,842,624 bytes = 1024 terabytes or roughly 10^15 bytes. 1024 petabytes is one exabyte.
Google is estimated to store about 200 petabytes of data in about 25 data centers around the world.
See prefix.
(2007-09-13)

The Free On-line Dictionary of Computing, © 1993-2007 Denis Howe
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