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A zettabyte (symbol ZB, derived from the SI prefix zetta-) is a unit of information or computer storage equal to one sextillion (one long scale trilliard) bytes. A bit is a binary digit, taking a value of either 0 or 1 Binary digits are a basic unit of Information storage and communication A byte (pronounced "bite" baɪt is the basic unit of measurement of information storage in Computer science. An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol to form a Decimal multiple or Kilo- (symbol k is a prefix in the SI and other systems of units denoting 103 or 1000 Mega- (symbol M) is an SI prefix in the SI system of units denoting a factor of 106, 1000000 (one Million For other meanings see Giga (disambiguation Giga- (symbol G is a prefix in the SI system of units denoting 109 teras- (symbol T) is a prefix in the SI system of units denoting 1012, or 1000000000000 (1 trillion In Physics and Mathematics, peta- (symbol P) is a prefix in the SI ( System of units) denoting 1015 exa- (symbol E) is a prefix in the SI system of units denoting 1018 or 1 000 000 000 000 000 000 zetta- (symbol Z) is an SI prefix in the SI ( System of units) denoting 1021 or 1 000 000 000 000 000 000 000 yotta- (symbol Y) is an SI prefix in the SI ( System of units) denoting 1024 or 1 000 000 000 000 000 000 000 000 IEC 60027 (formerly IEC 27) is the International Electrotechnical Commission 's standard on Letter symbols to be used in electrical technology. JEDEC Solid State Technology Association, formerly known as J oint E lectron D evice E ngineering C ouncil ( JEDEC) or Joint An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol to form a Decimal multiple or zetta- (symbol Z) is an SI prefix in the SI ( System of units) denoting 1021 or 1 000 000 000 000 000 000 000 Information as a concept has a diversity of meanings from everyday usage to technical settings Computer data storage, often called storage or memory, refers to Computer components devices and recording media that retain digital Names of numbers larger than a quadrillion are almost never used for reasons discussed further below The long and short scales are two different numerical systems used throughout the world Short scale is the English translation of the French Names of numbers larger than a quadrillion are almost never used for reasons discussed further below A byte (pronounced "bite" baɪt is the basic unit of measurement of information storage in Computer science. [1][2][3][4]
- 1,000,000,000,000,000,000,000 bytes = 10007, or 1021.
An alternative (rarely used) definition is[5]
- 1,180,591,620,717,411,303,424 bytes = 10247, or 270.
The term "zebibyte", using a binary prefix, has been proposed as an unambiguous reference to the latter value. A zebibyte (a contraction of ze tta bi nary byte) is a unit of Information or Computer storage, commonly abbreviated ZiB In computing binary prefixes are names or associated symbols that can precede a unit of measure (such as a Byte) to indicate multiplication by a power of two
According to IDC, as of 2006 the total amount of digital data in existence was 0. International Data Corporation ( IDC) is a Market research and analysis firm specializing in Information technology, Telecommunications and consumer 161 zettabytes; the same paper estimates that by 2010, the rate of digital data generated worldwide will be 0. 988 zettabytes per year. [6]
A white paper released on March 11, 2008 from IDC revised the research firm's earlier estimates to show that by 2011, the amount of electronic data created and stored will grow to 10 times the 180 exabytes that existed in 2006, reflecting a compound annual growth rate of almost 60%. International Data Corporation ( IDC) is a Market research and analysis firm specializing in Information technology, Telecommunications and consumer [7]
By 2011, there will be 1,800 exabytes of electronic data in existence, or 1. 8 zettabytes (an exabyte is equal to 1 billion gigabytes).
IDC also acknowledged that it underestimated earlier digital data figures for 2007, saying the actual amount of data — 281 exabytes — is 10% greater than it had previously forecasted in the first "Digital Universe" study. IDC said the bigger numbers were the result of faster growth in digital cameras and televisions, as well as a better understanding of data replication. [8]
The Z in Sun's ZFS file system originally stood for zettabyte. Sun Microsystems Inc ( is a multinational vendor of Computers computer components Computer software, and Information technology services In Computing, ZFS is a File system designed by Sun Microsystems for the Solaris Operating System.
HP states that HP-UX 11i v3 "enables [. HP-UX (Hewlett Packard UniX is Hewlett-Packard 's proprietary implementation of the Unix Operating system, based on System V (initially . . ] 100 million zettabytes of storage",[9] although the product release notes state that the maximum supported size for an individual filesystem is 40 TB (0. 000 000 004 zettabytes);[10] 25 quadrillion separate filesystems would be required to reach the stated number.
References
- ^ Zettabyte flood predicted for 2015, Tom Burton (January 2008)
- ^ A zettabyte by 2010: Corporate data grows fiftyfold in three years, Lucas Mearian (March 2007)
- ^ Study: Digital universe and its impact bigger than we thought, Lucas Mearian (March 2008)
- ^ Internet Traffic to Reach a Zettabyte by 2015, Says Study
- ^ FOLDOC: Free On-Line Dictionary of Computing
- ^ John F. Gantz; David Reinsel, Christopeher Chute, Wolfgang Schlichting, John McArthur, Stephen Minton, irida Xheneti, Anna Toncheva, Alex Manfrediz (March 2007). The Expanding Digital Universe: A Forecast of Worldwide Information Growth Through 2010. International Data Corporation, sponsored by EMC Corporation. International Data Corporation ( IDC) is a Market research and analysis firm specializing in Information technology, Telecommunications and consumer EMC Corporation ( is a US Fortune 500 and S&P 500 Provider of information infrastructure systems software and services Retrieved on 2007-11-28. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. For the town in Argentina, see 28 de Noviembre. Events
- ^ John F. Gantz; David Reinsel, Christopeher Chute, Wolfgang Schlichting, Stephen Minton, Anna Toncheva, Alex Manfrediz (March 2008). The Expanding Digital Universe: An Updated Forecast of Worldwide Information Growth Through 2011. International Data Corporation, sponsored by EMC Corporation. International Data Corporation ( IDC) is a Market research and analysis firm specializing in Information technology, Telecommunications and consumer EMC Corporation ( is a US Fortune 500 and S&P 500 Provider of information infrastructure systems software and services Retrieved on 2008-03-12. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Events 538 - Witiges, king of the Ostrogoths ends his siege of Rome and retreats to Ravenna, leaving
- ^ Lucas Mearian (March 2008). Study: Digital universe and its impact bigger than we thought. ComputerWorld. Computerworld is an IT magazine that provides information to technology managers Retrieved on 2008-03-12. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common Events 538 - Witiges, king of the Ostrogoths ends his siege of Rome and retreats to Ravenna, leaving
- ^ HP-UX 11i v3 for HP Integrity and HP 9000 servers http://h20338.www2.hp.com/hpux11i/cache/458092-0-0-0-121.html
- ^ HP-UX File Systems Architecture Enhancements. Hewlett-Packard. Retrieved on 2007-11-27. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. Events 1095 - Pope Urban II declares the First Crusade at the Council of Clermont “In HP-UX 11i v3, customers using VxFs file systems will have support for larger file systems up to 40TB, and individual files up to 16TB. ”
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