Contents 1 Definition 2 History 3 Illustrative usage examples 4 See also 5 References

Definition[edit] 1 TB = 1000000000000bytes = 1012bytes = 1000gigabytes. A related unit, the tebibyte (TiB), using a binary prefix, is equal to 10244 bytes. One terabyte is about 0.9095 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.[1][2] One thousand terabytes (1000 TB) is equal to one petabyte (1 PB).

History[edit] Early usage of terabyte in selected products: Optical disk storage 1985[3] Supercomputer mass storage: ca. 1992 (decimal usage) [4] Supercomputer memory: 2005 (binary usage)[5] Hard disk drives: 2007 (decimal usage)[6] Tape drives: 2010 (decimal usage)[7] Motherboard memory: 2011 (binary usage) [8]

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[update] "the Library has collected about 525 terabytes of web archive data" and that it adds about 5 terabytes per month.[9] Online databases: claims approximately 600 TB of genealogical data with the inclusion of US Census data from 1790 to 1930.[10] 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.[11] Computer hardware: Hitachi introduced the world's first one terabyte hard disk drive in 2007.[12] Historical Internet traffic: In 1993, total Internet traffic amounted to approximately 100 TB for the year.[13] As of June 2008[update], Cisco Systems estimated Internet traffic at 160 TB/s (which, assuming to be statistically constant, comes to 5 zettabytes for the year).[14] 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".[15] Video: Released in 2009, the 3D animated film Monsters vs. Aliens used 100 TB of storage during development.[16] Usenet: In October 2000, the Deja News Usenet archive had stored over 500 million Usenet messages which used 1.5 TB of storage.[17] Encyclopedia: In January 2010, the database of Wikipedia consists of a 5.87 terabyte SQL dataset.[18] 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.[19] Audio: One terabyte of audio recorded at CD quality contains approx. 2000 hours of audio. Additionally, one terabyte of compressed audio recorded at 128 kbit/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.[20] The IBM computer Watson, against which Jeopardy! contestants competed in February 2011, has 16 terabytes of RAM.[21] 1 terabyte of data would require about 1428 CD-ROMs , 212 DVDs, or 40 single-layer Blu-ray Discs.

See also[edit] Orders of magnitude (data)

References[edit] ^ How operating systems report drive capacity, Seagate Inc. ^ Windows disk space using TB as a binary value, from ^ [1] ^ 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. ^ Gara, et. al., (2005, March/May). Overview of the Blue Gene/L system architecture. IBM JRD, p.195-212 "32 TB of total memory" (p.203) ^ Hitachi Introduces 1-Terabyte Hard Drive ^ expected in H1 2010 with 1.5TB - 3TB storage (updated) ^ New Intel Server Board to Hold 1 TB of RAM ^ "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.  ^ " Adds U.S. Census Records". CBS News. 2006-06-22.  ^ "Just How Much Is That 300 TB of Large Hadron Collider Data CERN Released?". Popular Mechanics. 2016-04-25. Retrieved 2016-07-18.  ^ "Hitachi Introduces 1-Terabyte Hard Drive". PC World. 2007-01-07. Retrieved 2008-09-15.  ^ Swanson, Bret (2007-10-03). "Discovery Institute's Technology Blog: An exabyte here, an exabyte there". disco-tech. Retrieved 2013-04-14.  ^ White, Bobby (2008-06-16). "Cisco Projects Growth To Swell for Online Video". The Wall Street Journal.  ^ "Yahoo! Groups Blog". 2009-05-09. Archived from the original on 2009-05-08.  ^ 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.  ^ "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  ^ "Data dumps – Meta". Retrieved 2013-04-14.  ^ (PDF) Retrieved August 17, 2010.  Missing or empty |title= (help)[dead link] ^ "NASA – NASA – The Hubble Story". 2010-04-29. Retrieved 2013-04-14.  ^ "It's Technical, Dear Watson – The "Jeopardy!" playing computer's feeds and speeds". February 2011. Retrieved 2013-07-04.  v t e Units of information Base unit bit Platform-dependent units nibble byte syllable parcel word Platform-independent units unibit (1) dibit (2) tribit (3) quadbit (4) quartet (4) sextet (6) octet (8) hextet (16) declet (10) doublet (16) quadlet (32) octlet (64) hexlet (128) triad (3) tetrad (4) pentad (5) hexad (6) heptad (7) octad (8) slab (12) catena (24) Traditional bit units kilobit megabit gigabit terabit petabit exabit zettabit yottabit Traditional byte units kilobyte megabyte gigabyte terabyte petabyte exabyte zettabyte yottabyte IEC bit units kibibit mebibit gibibit tebibit pebibit exbibit zebibit yobibit IEC byte units kibibyte mebibyte gibibyte tebibyte pebibyte exbibyte zebibyte yobibyte Retrieved from "" Categories: Units of informationHidden categories: Pages with citations lacking titlesPages with citations having bare URLsAll articles with dead external linksArticles with dead external links from May 2016Articles containing potentially dated statements from March 2014All articles containing potentially dated statementsArticles containing potentially dated statements from June 2008

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