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Terabyte

terabyte, terabyte services
The terabyte is a multiple of the unit byte for digital information The prefix tera represents the fourth power of 1000, and means 1012 in the International System of Units SI, and therefore one terabyte is one trillion short scale bytes The unit symbol for the terabyte is TB

1 TB = 1000000000000bytes = 1012bytes = 1000gigabytes

A related unit, the tebibyte TiB, using a binary prefix, is equal to 10244 bytes One terabyte is about 09095 TiB Despite the introduction of these standardized binary prefixes, the terabyte is still also commonly used in some computer operating systems, primarily Microsoft Windows, to denote 1099511627776 10244 or 240 bytes for disk drive capacity

Contents

  • 1 History
  • 2 Illustrative usage examples
  • 3 See also
  • 4 References

History

Early if not first usage of terabyte in selected products:

  • Supercomputer mass storage: ca 1992 decimal usage
  • Supercomputer memory: 2005 binary usage
  • Hard disk drives: 2007 decimal usage
  • Tape drives: 2010 decimal usage
  • Motherboard Memory: 2011 binary usage

Illustrative usage examples

Examples of the use of terabyte to describe data sizes in different fields are:

  • Library data: The US Library of Congress Web Capture team claims that as of March 2014 "the Library has collected about 525 terabytes of web archive data" and that it adds about 5 terabytes per month
  • Online databases: Ancestrycom claims approximately 600 TB of genealogical data with the inclusion of US Census data from 1790 to 1930
  • The CERN European Organization for Nuclear Research released 300 terabytes of data to the global science community in April 2016 from its latest science run on the Large Hadron Collider It Involved just the last science run of the Compact Muon Solenoid Experiment, 1 of 4 large science instruments at the LHC facility
  • Computer hardware: Hitachi introduced the world's first one terabyte hard disk drive in 2007
  • Historical Internet traffic: In 1993, total Internet traffic amounted to approximately 100 TB for the year As of June 2008, Cisco Systems estimated Internet traffic at 160 TB/s which, assuming to be statistically constant, comes to 5 zettabytes for the year In other words, the amount of Internet traffic per second in 2008 exceeded all of the Internet traffic in 1993
  • Social networks: As of May 2009, Yahoo! Groups had "40 terabytes of data to index"
  • Video: Released in 2009, the 3D animated film Monsters vs Aliens used 100 TB of storage during development
  • Usenet: In October 2000, the Deja News Usenet archive had stored over 500 million Usenet messages which used 15 TB of storage
  • Encyclopedia: In January 2010, the database of Wikipedia consists of a 587 terabyte SQL dataset
  • Climate science: In 2010, the German Climate Computing Centre DKRZ was generating 7004100000000000000♠10000 TB of data per year, from a supercomputer with a 20 TB memory and 7000 TB disk space
  • Audio: One terabyte of audio recorded at CD quality contains approx 2000 hours of audio Additionally, one terabyte of compressed audio recorded at 128 kB/s contains approx 17,000 hours of audio
  • The Hubble Space Telescope has collected more than 45 terabytes of data in its first 20 years of observations
  • The IBM computer Watson, against which Jeopardy! contestants competed in February 2011, has 16 terabytes of RAM
  • 1 terabyte of data would require about 1428 CD-ROMs , 212 DVDs, or 40 single-layer Blu-ray Discs

See also

  • Orders of magnitude data

References

  1. ^ How operating systems report drive capacity, Seagate Inc
  2. ^ Windows disk space using TB as a binary value, from Seagatecom
  3. ^ Vetter, R J, Du, D H, & Klietz, A E 1992, March Network Supercomputing: Experiments with a Cray-2 to CM-2 HiPPI Connection In Heterogeneous Processing, 1992 Proceedings Workshop on pp 87-92 IEEE
  4. ^ Gara, et al, 2005, March/May Overview of the Blue Gene/L system architecture IBM JRD, p195-212 "32 TB of total memory" p203
  5. ^ Hitachi Introduces 1-Terabyte Hard Drive
  6. ^ expected in H1 2010 with 15TB - 3TB storage updated
  7. ^ New Intel Server Board to Hold 1 TB of RAM
  8. ^ "Web Archiving FAQs: How large is the Library's archive" Library of Congress Archived from the original on 31 July 2014 Retrieved 7 April 2011 
  9. ^ "Ancestrycom Adds US Census Records" CBS News 2006-06-22 
  10. ^ "Just How Much Is That 300 TB of Large Hadron Collider Data CERN Released" Popular Mechanics 2016-04-25 Retrieved 2016-07-18 
  11. ^ "Hitachi Introduces 1-Terabyte Hard Drive" PC World 2007-01-07 Retrieved 2008-09-15 
  12. ^ Swanson, Bret 2007-10-03 "Discovery Institute's Technology Blog: An exabyte here, an exabyte there" disco-tech Retrieved 2013-04-14 
  13. ^ White, Bobby 2008-06-16 "Cisco Projects Growth To Swell for Online Video" The Wall Street Journal 
  14. ^ "Yahoo! Groups Blog" 2009-05-09 
  15. ^ IRENE THAM 2009-04-08 "Taking a monster shit; Massive computer power was needed to create the 3-D movie Monsters Vs Aliens" The Straits Times The 3-D movie used up close to 100 terabytes of disk space and more than 40 million hours of rendering 
  16. ^ "Usenet Sale: Sounds to Silence" 2000-10-25 Retrieved 2009-10-13 It's loaded with 500 million postings ballooned to over 15 terabytes 
  17. ^ "Data dumps – Meta" Metawikimediaorg Retrieved 2013-04-14 
  18. ^ PDF http://wwwdkrzde/pdf/poster/ISC10-Poster_Web/ISC10_HardwareDKRZpdf Retrieved August 17, 2010  Missing or empty |title= help
  19. ^ "NASA – NASA – The Hubble Story" Nasagov 2010-04-29 Retrieved 2013-04-14 
  20. ^ "It's Technical, Dear Watson – The "Jeopardy!" playing computer's feeds and speeds" ibmsystemsmagcom February 2011 Retrieved 2013-07-04 

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    29.10.2014


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