Gigabit

Gigabit

A gigabit is a unit of information or computer storage, abbreviated Gbit (or Gb).

1 gigabit = 109 = 1,000,000,000 bits (which is equal to 125 decimal megabytes or 122 binary mebibytes, as 8 "bits" equals one "byte")

The gigabit is closely related to the gibibit, which is unambiguously equal to 230 bits = 1,073,741,824 bits.

Note that the difference between a billion bits and a gibibit is greater than 7%. This is sufficient to make it economically compelling to represent certain classes of storage devices in (true) gigabits or gigabytes rather than gibibits/gibibytes. RAM and flash chips are usually required to have a capacity that is a power of two, but other devices like hard disk drives need not.

ee also

* Gigabyte
* Gigabit per second
* Gigabit Ethernet and 10 Gigabit Ethernet


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  • gigabit — gig‧a‧bit [ˈgɪgəbɪt] noun [countable] COMPUTING a unit of computer information equal to one thousand million bit S: • Five gigabits is equal to 5,000 200 page books …   Financial and business terms

  • Gigabit — v · bits Préfixes SI Préfixes binaires Nom (Symbole) Standard SI Usage Nom (Symbole) Valeur …   Wikipédia en Français

  • Gigabit — Unidades básicas de información (en bytes) Prefijos del Sistema Internacional Prefijo binario Múltiplo (Símbolo) Estándar SI Binario Múltiplo (Símbolo) Valor kilobyte (kB) 103 210 …   Wikipedia Español

  • gigabit — ● um. m. ►UM Abrév. courante de gigabit par seconde . Unité de mesure du débit d une liaison, valant un milliard de bits par seconde (à peu de choses près). Généralement synonyme de gigabit ethernet …   Dictionnaire d'informatique francophone

  • Gigabit — Vielfache von Bit SI Präfixe Binärpräfixe Name Symbol Bedeutung Name Symbol Bedeutung Kilobit kbit 103 bit Kibibit Kibit 210 bit Megabit Mbit 106 bit Meb …   Deutsch Wikipedia

  • Gigabit — Gi|ga|bit 〈n. 15〉 109 Bit (1024 Megabit) * * * Gigabit,   Gbit …   Universal-Lexikon

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  • Gigabit Ethernet — (GbE or 1 GigE) is a term describing various technologies for transmitting Ethernet frames at a rate of a gigabit per second, as defined by the IEEE 802.3 2005 standard. Half duplex gigabit links connected through hubs are allowed by the… …   Wikipedia

  • Gigabit Ethernet — Gigabit Ethernet, también conocida como GigaE, es una ampliación del estándar Ethernet (concretamente la versión 802.3ab y 802.3z del IEEE) que consigue una capacidad de transmisión de 1 gigabit por segundo, correspondientes a unos 1024 (2¹º)… …   Wikipedia Español

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