Dictionary:
pet·a·byte (pĕt'ə-bīt)  |
- A unit of computer memory or data storage capacity equal to 1,024 terabytes (250 bytes).
- One quadrillion bytes.
petabyte
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A petabyte (derived from the SI prefix peta- ) is a unit of information or computer storage equal to one quadrillion bytes (short scale), or 1000 terabytes. It is abbreviated PB. When used with byte multiples, the prefix indicates a power of 1000:
- 1 PB = 1,000,000,000,000,000 B = 10005 or 1015 bytes
The term "pebibyte", using a binary prefix, is used for multiples of 1024.
Contents |
Petabytes in use
- According to Kevin Kelly of the New York Times, "the entire works of humankind, from the beginning of recorded history, in all languages" would amount to 50 petabytes of data.[1]
- Teradata Database 12 has a capacity of 50 petabytes of compressed data.[2]
- AT&T has about 16 petabytes of data transferred through their networks each day.[3]
- The Internet Archive contains about 3 petabytes of data, and is growing at the rate of about 100 terabytes per month as of March, 2009.[4][5]
- Google processes about 20 petabytes of data per day.[6]
- The 4 experiments in the Large Hadron Collider will produce about 15 petabytes of data per year, which will be distributed over the LHC Computing Grid.[7]
- Facebook has just over 1.5 petabyte of users' photos stored, translating into roughly 10 billion photos.[8]
- Isohunt has about 1.6 petabytes of files contained in torrents indexed globally.[9]
- RapidShare stated in April 2008 that it had 5.4 petabytes of storage for users.[10]
- Opera Software noted that in January 2009 its Opera Mini browser was processing more than 1 petabyte of data every month.[11]
- BBC iPlayer streams 7 petabytes of content per month[12]
See also
References
- ^ Kelly, Kevin (2006-03-14). "Scan This Book!". New York Times. http://www.nytimes.com/2006/05/14/magazine/14publishing.html.
- ^ http://www.teradata.com/t/products-and-services/database/teradata-12/
- ^ http://www.att.com/gen/press-room?cdvn=news&newsarticleid=26230&pid=4800
- ^ http://www.archive.org/about/faqs.php
- ^ http://www.computerworld.com/action/article.do?command=viewArticleBasic&taxonomyName=hardware&articleId=9130081&taxonomyId=12&intsrc=kc_top
- ^ http://portal.acm.org/citation.cfm?doid=1327452.1327492
- ^ http://www.interactions.org/cms/?pid=1027032
- ^ http://www.facebook.com/note.php?note_id=76191543919&ref=mf
- ^ http://isohunt.com/forum/viewtopic.php?t=145853
- ^ http://en.wikipedia.org/wiki/Rapidshare
- ^ http://www.opera.com/smw/2009/01/
- ^ I Pro Portal - "iPlayer Streams 7 Petabyte Of Content Per Month, Coming to Freeview Soon"Accessed 9 May 2009
http://www.dell.com/downloads/global/casestudies/580_Dell_Case_Study_mp_v2.pdf
External links
- CacheLogic Survey: P2P Accounts for 10 Petabytes of Data
- Fancy a Million-Gigabyte Hard Drive?
- Remember when 1MB was a lot?
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 | peta– (prefix) |
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Petabyte". Read more |
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