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What are KB, MB, GB, and TB? (Computer Tech 101)
What are KB, MB, GB, and TB? (Computer Tech 101)
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T-Gamer AMD Terabyte Shop Unboxing
T-Gamer AMD Terabyte Shop Unboxing
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UNBOXING PC TERABYTE
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Terabyte T-Gamer AMD FX 8320 / XFX R9 280X + Teste de Battlefield 3 e Battlefield 4
Terabyte T-Gamer AMD FX 8320 / XFX R9 280X + Teste de Battlefield 3 e Battlefield 4
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One Terabyte (1 TB) External Hard Drive
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Unboxing PC novo Terabyte! Um T-Gamer.
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Terabyte
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unboxing - Parceria Terabyte!
unboxing - Parceria Terabyte!
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Como aumentar a memoria do seu PC para 1 Terabyte
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Kerli - Army of Love (Terabyte Frenzy Remix) [FREE DL]
Kerli - Army of Love (Terabyte Frenzy Remix) [FREE DL]
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Los Terabyte (Crazy Man y 2.8) - La Grilla (Official Video] ᴴᴰ @PapaitoRecords
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Harry Potter Dubstep (Remix) - Terabyte Frenzy
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♫ ★ Non Copyrighted Music : ♫ : Terabyte Frenzy - Army Of Love Remix (Dubstep)
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::2012/05/16::
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NOS GUSTAMOS - LOS TERABYTE - LETRA
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Kerli - Army Of Love - Terabyte Frenzy
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Terabyte Frenzy - Scream (VIP MIX)
Terabyte Frenzy - Scream (VIP MIX)
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01A.1 Terabyte und Tebibyte
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BO2 - PC novo, desconto Terabyte e novidades!
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CES 2013: Kingston shows off 1 terabyte USB stick and more
CES 2013: Kingston shows off 1 terabyte USB stick and more
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Terabyte Dance Crew "1st Runner Up"
Terabyte Dance Crew "1st Runner Up"
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Kimi wa nan terabyte?
Kimi wa nan terabyte?
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Terabyte la Cyberteca Practicas de Mezclas 80`s
Terabyte la Cyberteca Practicas de Mezclas 80`s
::2013/11/12::
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360 Terabyte Brüste, Charakter-Swapping und Game of Thrones!
360 Terabyte Brüste, Charakter-Swapping und Game of Thrones!
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los terabyte la grilla preview del video
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VERTEBRAC  TERABYTE -  DJENT PERU
VERTEBRAC TERABYTE - DJENT PERU
::2011/10/14::
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Los Terabyte Chica Prepago.wmv
Los Terabyte Chica Prepago.wmv
::2011/09/22::
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Terabyte Frenzy - Army Of Love Remix (Dubstep)
Terabyte Frenzy - Army Of Love Remix (Dubstep)
::2013/07/22::
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Parayba Testa: T-Home I5 da TeraByte
Parayba Testa: T-Home I5 da TeraByte
::2013/05/06::
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LA GRILLA.. LOS TERABYTE (CRAZY MAN Y BLACK DOG)
LA GRILLA.. LOS TERABYTE (CRAZY MAN Y BLACK DOG)
::2012/06/19::
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Que es GIGABYTE Y TERABYTE?
Que es GIGABYTE Y TERABYTE?
::2013/06/21::
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From Wikipedia, the free encyclopedia
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Multiples of bytes
Decimal
Value Metric
1000 kB kilobyte
10002 MB megabyte
10003 GB gigabyte
10004 TB terabyte
10005 PB petabyte
10006 EB exabyte
10007 ZB zettabyte
10008 YB yottabyte
Binary
Value JEDEC IEC
1024 KB kilobyte KiB kibibyte
10242 MB megabyte MiB mebibyte
10243 GB gigabyte GiB gibibyte
10244 - - TiB tebibyte
10245 - - PiB pebibyte
10246 - - EiB exbibyte
10247 - - ZiB zebibyte
10248 - - YiB yobibyte
Orders of magnitude of data

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 the corresponding 4th power of 1024. One terabyte is about 0.9095 tebibytes, or 931 gibibytes.

History[edit]

The first hard disk drives were created in the 1950s and 1960s and had the size of a refrigerator,[1][2] and had a capacity of a few megabytes. In 1982, the first IBM PC with a hard disk drive, had a capacity of 5 megabytes.[3] The first single hard disks of terabyte size did not appear until the late 2000s. As of 2014, 1 terabyte solid state drives use an mSATA form factor.[4]

Costs[edit]

In 1991, consumer grade, 1 gigabyte (1/1000 TB) disk drives were available for US$2699 and more,[16] and two years later prices for this capacity had dropped to US$1499.[17] By 1995, 1 GB drives could be purchased for US$849.[18]

  • 2007: 1 terabyte hard disk costs US$370
  • 2010: 2 terabyte hard disk costs US$200
  • 2012: 4 terabyte hard disk US$450 (Hitachi, largest available in consumer market), 1 terabyte hard disk US$100
  • 2013: 4 terabyte hard disk US$179, 3 terabyte hard disk $129, 2 terabyte HD $100, 1 terabyte HD US$80

Illustrative usage examples[edit]

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

  • Library data: The U.S. 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.[19]
  • Online databases: Ancestry.com claims approximately 600 TB of genealogical data with the inclusion of US Census data from 1790 to 1930.[20]
  • Computer hardware: Hitachi introduced the world's first one terabyte hard disk drive in 2007.[21]
  • Historical Internet traffic: In 1993, total Internet traffic amounted to approximately 100 TB for the year.[22] 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).[23] 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".[24]
  • Video': Released in 2009, the 3D animated film Monsters vs. Aliens used 100 TB of storage during development.[25]
  • Usenet: In October 2000, the Deja News Usenet archive had stored over 500 million Usenet messages which used 1.5 TB of storage.[26]
  • Encyclopedia: In January 2010, the data base of Wikipedia consists of a 5.87 terabyte SQL dataset.[27]
  • Climate science: In 2010, the German Climate Computing Centre (DKRZ) was generating 10,000 TB of data per year, from a supercomputer with a 20 TB memory and 7,000 TB disk space.[28]
  • 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.[29]
  • The IBM computer Watson, against which Jeopardy! contestants competed in February 2011, has 16 terabytes of RAM.[30]

See also[edit]

References[edit]

  1. ^ "Computer History Museum | Timeline of Computer History : Storage Entries". Computerhistory.org. Retrieved 2013-12-20. 
  2. ^ "IBM 305 RAMAC- The First Computer with a Hard Disk Drive in 1956". Cedmagic.com. 1956-09-13. Retrieved 2013-12-20. 
  3. ^ [1]
  4. ^ "Samsung Introduces Industry’s First 1 Terabyte mSATA SSD | Samsung Semiconductor Global Site" (Press release). Samsung.com. Retrieved 2014-03-01. 
  5. ^ a b "Convert terabytes (TB) to tebibytes (TiB) | Category : bits and bytes | Unit Conversion Center". Conversioncenter.net. Retrieved 2013-04-14. 
  6. ^ Hitachi introduces 1-Terabyte Hard Drive
  7. ^ Seagate Powers Next Generation Of Computing With Three New Hard Drives, Including World's First 1.5-Terabyte Desktop PC And Half-Terabyte Notebook PC Hard Drives
  8. ^ [2] at the Wayback Machine
  9. ^ "WD to launch 2TB hard drive this week". Electronista. Retrieved 2013-04-14. 
  10. ^ Murph, Darren (2009-01-26). "Western Digital's 2TB Caviar Green HDD on sale in Australia". Engadget.com. Retrieved 2013-04-14. 
  11. ^ "The Linear Tape File System". 
  12. ^ "Hitachi 4 Terabyte HDD Price, Hitachi Touro Price [Hard Drives 2012]". Techlivez.com. Retrieved 2013-12-20. 
  13. ^ "Drive advance fuels terabyte era". BBC News. 15 October 2007. 
  14. ^ "1TB USB stick shoved into Swiss Army knife". The Register. 9 January 2012. Retrieved 2013-12-20. 
  15. ^ "HGST Ships 6TB Ultrastar® He6 Helium-filled Drives for High-density, Massive Scale-out Data Center Environments | HGST Storage". Hgst.com. 2013-11-04. Retrieved 2013-12-20. 
  16. ^ "The High and the Mighty," Macworld, July, 1991
  17. ^ "1- and 2-Gigabyte Hard Drives", MacUser, July, 1993
  18. ^ Ivan Smith. "Cost of Hard Drive Space". Ns1758.ca. Retrieved 2013-12-20. 
  19. ^ How large is the Library's archive?, Web Archiving FAQs, accessed 7 April 2011.
  20. ^ "Ancestry.com Adds U.S. Census Records". CBS News. 2006-06-22. 
  21. ^ "Hitachi Introduces 1-Terabyte Hard Drive". PC World. 2007-01-07. Retrieved 2008-09-15. 
  22. ^ Swanson, Bret (2007-10-03). "Discovery Institute's Technology Blog: An exabyte here, an exabyte there". disco-tech. Retrieved 2013-04-14. 
  23. ^ White, Bobby (2008-06-16). "Cisco Projects Growth To Swell for Online Video". The Wall Street Journal. 
  24. ^ "Yahoo! Groups Blog". 2009-05-09. 
  25. ^ 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." 
  26. ^ "Usenet Sale: Sounds to Silence?". 2000-10-25. Retrieved 2009-10-13. "It's loaded with 500 million postings .... [and has] ballooned to over 1.5 terabytes" 
  27. ^ "Data dumps – Meta". Meta.wikimedia.org. Retrieved 2013-04-14. 
  28. ^ [3][dead link]
  29. ^ "NASA – NASA – The Hubble Story". Nasa.gov. 2010-04-29. Retrieved 2013-04-14. 
  30. ^ "It’s Technical, Dear Watson – The "Jeopardy!" playing computer’s feeds and speeds". ibmsystemsmag.com. 2011-02-29. Retrieved 2013-07-04. 
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