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giga- (symbol: G) is a prefix in the SI system of units denoting 10⁹, or 1,000,000,000 (1 billion). Wikipedia does not have an article with this exact name. ... Wiktionary is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... An SI prefix is a prefix that can be applied to an SI unit to form a decimal multiple (supramultiple or submultiple). ... Cover of brochure The International System of Units. ... To help compare orders of magnitude this page lists dimensionless numbers between 109 and 1012. ...

Confirmed in 1960, it comes from the Greek γίγας, meaning giant. 1960 (MCMLX) was a leap year starting on Friday (the link is to a full 1960 calendar). ...

When referring to computing information units, such as gigabit or gigabyte, giga- can sometimes mean 1,073,741,824 (2³⁰), but can also denote 1,000,000,000 (10⁹). The exact definition being used is ambiguous, and must be determined from context. The binary prefix gibi- has been standardized for 2³⁰, while reserving giga- exclusively for 10⁹, to resolve this ambiguity, but has yet to achieve widespread usage. See Binary prefix. Originally, the word computing was synonymous with counting and calculating, and a science and technology that deals with the original sense of computing mathematical calculations. ... A gigabit is a unit of information or computer storage, abbreviated Gbit or sometimes Gb. ... A gigabyte (derived from the SI prefix giga-) is a unit of information or computer storage equal to one billion (short scale, meaning a thousand million) bytes. ... In computing, binary prefixes are often used to quantify large numbers where powers of two are more useful than powers of ten. ... In computing, binary prefixes can be used to quantify large numbers where powers of two are more useful than powers of ten. ...

Pronunciation

In English the initial G of giga can be pronounced with a soft G (as in gigantic) or with a hard G (as in giggle). The latter hard G pronunciation has become more common, especially when referring to computer measurements such as gigabyte and gigahertz, which is wrong. A prominent example of the soft G pronunciation is found in the 1985 movie Back to the Future, where gigawatts was pronounced as jigawatts, which is correct. Giga originated from the Greek language meaning Giant. Giant as we all know is pronunced ji' ant, with a soft G. The English language is a West Germanic language that originates in England. ... A gigabyte (derived from the SI prefix giga-) is a unit of information or computer storage equal to one billion (short scale, meaning a thousand million) bytes. ... A gigahertz is a billion hertz or a thousand megahertz, a measure of frequency. ... 1985 (MCMLXXXV) was a common year starting on Tuesday of the Gregorian calendar. ... Back to the Future is an American science fiction/comedy film directed by Robert Zemeckis and released in 1985. ...

Common usage

• gigabyte — for instance, in hard disk capacity, 120 GB = 120,000,000,000 bytes; in file sizes, 1 GB = 1,073,741,824 bytes (also termed a gibibyte to reduce ambiguity)
• gigahertz — clock rate of a CPU, for instance, 3 GHz = 3,000,000,000 Hz
• gigabit — bandwidth of a network, for instance, 1 Gbit = 1,000,000,000 bit/s
• gigayear or giga-annum — one billion (10⁹) complete Julian rotation periods of the Earth about the Sun. (common abbr. Gyr)

A gigabyte (derived from the SI prefix giga-) is a unit of information or computer storage equal to one billion (short scale, meaning a thousand million) bytes. ... Typical hard drives of the mid-1990s. ... A gibibyte is a unit of information or computer storage. ... A gigahertz is a billion hertz or a thousand megahertz, a measure of frequency. ... It has been suggested that this article or section be merged into Clock signal. ... Die of an Intel 80486DX2 microprocessor (actual size: 12×6. ... The hertz (symbol: Hz) is the SI unit of frequency. ... A gigabit is a unit of information or computer storage, abbreviated Gbit or sometimes Gb. ... This article or section does not cite its references or sources. ... Bold text For the scientific and engineering discipline studying computer networks, see Computer networking. ... This article is about the unit of information. ... A year is the time between two recurrences of an event related to the orbit of the Earth around the Sun. ... Giga-annum, usually abbreviated as Ga, is a unit of time equal to 10^9 years. ... A year is the time between two recurrences of an event related to the orbit of the Earth around the Sun. ... The Sun is the star at the center of the Solar System. ... An SI prefix is a prefix that can be applied to an SI unit to form a decimal multiple (supramultiple or submultiple). ... The long and short scales are two different numerical systems used throughout the world. ... The long and short scales are two different numerical systems used throughout the world. ... The decimal (base ten or occasionally denary) numeral system has ten as its base. ... Cover of brochure The International System of Units. ... Yotta (symbol Y) is a SI prefix in the SI (system of units) denoting 1024 or 1 000 000 000 000 000 000 000 000. ... Main article: Names of large numbers A septillion is a number written as either: a 1 followed by 24 zeros (10 to the 24th power, as used in the short scale system of numeration. ... The quadrillion is a large number which has one of two values depending on how or where it is being used. ... Zetta (symbol Z) is a SI prefix in the SI (system of units) denoting 1021 or 1 000 000 000 000 000 000 000. ... Main article: Names of large numbers A sextillion is a number written as either: a 1 followed by 21 zeros (10 to the 21st power, as used in the short scale system of numeration. ... In long scale usage: one trilliard = 1,000,000,000,000,000,000,000 = 1021 one thousand trilliards =one (long scale) quadrillion This word is not found in standard English dictionaries. ... In the X Window System, in the X.Org Server, EXA is a graphics acceleration architecture to make the XRender extension more usable, with only minor changes needed to adapt XFree86 video drivers written to use XAA (the XFree86 Acceleration Architecture). ... Main article: Names of large numbers A quintillion is a number written as either: a 1 followed by 18 zeros (10 to the 18th power, as used in the short scale system of numeration. ... The numeral trillion refers to one of two number values, depending on the context of where and how it is being used. ... In physics and mathematics, peta- (symbol: P) is a prefix in the SI (system of units) denoting 1015, or 1 000 000 000 000 000. ... The quadrillion is a large number which has one of two values depending on how or where it is being used. ... In some countries and languages using the long scale: one billiard = = one short scale quadrillion. ... tera- (symbol: T) is a prefix in the SI system of units denoting 1012, or 1 000 000 000 000. ... The numeral trillion refers to one of two number values, depending on the context of where and how it is being used. ... Billion may mean: 1,000,000,000 (one thousand million; ), used by most English-speaking countries (American and usual modern British meaning) 1,000,000,000,000 (one million million; ), used by most other countries outside Asia (older British meaning). ... Billion may mean: 1,000,000,000 (one thousand million; ), used by most English-speaking countries (American and usual modern British meaning) 1,000,000,000,000 (one million million; ), used by most other countries outside Asia (older British meaning). ... Milliard is a French-derived word meaning the number 109 (one thousand million). ... mega- (symbol M) is an SI prefix in the SI system of units denoting a factor of 106, i. ... One million (1,000,000), or one thousand thousand, is the natural number following 999,999 and preceding 1,000,001. ... Kilo (symbol: k) is a prefix in the SI system denoting 103 or 1000. ... Cardinal 1000 one thousand Ordinal 1000th Numeral system Factorization Prime Divisor(s) Roman numeral Unicode symbol(s) , , Greek Prefix chilia Latin Prefix milli Binary 1111101000 Octal 1750 Duodecimal 6B4 Hexadecimal 3E8 1000 (one thousand) is the natural number following 999 and preceding 1001. ... Hecto (symbol h) is a SI prefix in the SI system of units denoting a factor of 102 (100). ... 100 (one hundred) (the Roman numeral is C for centum) is the natural number following 99 and preceding 101. ... Look up deca- in Wiktionary, the free dictionary. ... 10 (ten) is an even natural number following 9 and preceding 11. ... Look up one in Wiktionary, the free dictionary. ... deci- (symbol d) is a prefix in the SI system of units denoting a factor of 10−1 (1/10). ... Centi (symbol c) is a SI prefix in the SI system of units denoting a factor of 10-2, or 1/100. ... Milli (symbol m) is an SI prefix in the SI system of units denoting a factor of 10-3, or 1/1,000. ... Look up micro- in Wiktionary, the free dictionary. ... Nano is a noun Name for an Apple Brand Ipod available in 2GB and 4GB memory sizes whose purpose is for storing and playing music. ... For other meanings of Pico see Pico (disambiguation) Pico (symbol p) is a prefix in the SI system of units denoting a factor of 10-12. ... Femto is an SI prefix (symbol f) in the SI system of units denoting a factor of 10−15 or 0. ... Atto- (symbol a) is an SI prefix to a unit and means that it is 10-18 times this unit. ... Zepto (symbol z) is a prefix in the SI system of units denoting a factor of 10-21. ... Yocto (symbol y) is a SI prefix in the SI system of units denoting a factor of 10-24. ...

See also

• SI prefix
• Binary prefix
• gibibyte
• Gigabit Ethernet

An SI prefix is a prefix that can be applied to an SI unit to form a decimal multiple (supramultiple or submultiple). ... In computing, binary prefixes can be used to quantify large numbers where powers of two are more useful than powers of ten. ... A gibibyte is a unit of information or computer storage. ... Gigabit Ethernet (GbE) is a term describing various technologies for transmitting Ethernet packets at a rate of a gigabit per second, as defined by the IEEE 802. ...

External links

• BIPM website