G4 or G.IV may refer to:

Places

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Arts, entertainment, games, media

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Groups, organisations, companies

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  • G4 nations, four nations that support each other's bids to become permanent members of the United Nations Security Council: Brazil, Germany, India, and Japan
  • Big Four (Western Europe), sometimes called 'G4', a group of powerful countries in Europe
  • VIP Protection Unit, a unit of the Hong Kong Police Force (originally Section G, Division 4)
  • Allegiant Air, by IATA airline designator

Electrics, electronics, and computing

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Apple Computer

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  • PowerPC G4, a type of microprocessor by Freescale used by Apple
    • Power Mac G4, a series of personal computers made by Apple Inc in July 1999
    • PowerBook G4, a series of Professional notebooks made by Apple Inc in 2001
    • iMac G4, a series of personal computer made by Apple Inc in January 2002
    • Xserve G4, an Xserve server made by Apple Inc in May 2002
    • iBook G4, an iBook series of consumer notebooks in October 2003
    • Mac Mini G4, a Mac Mini series of ultracompact computer in January 2005

Vehicles

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Other uses

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  • G4 EA H1N1, a strain of influenza
  • G-quadruplex, a DNA secondary structure
  • Group 4 element, a class of elements on the Periodic Table
  • ATC code G04 Urologicals, a subgroup of the Anatomical Therapeutic Chemical Classification System
  • Galactic 04 (G04), a Virgin Galactic suborbital tourist spaceflight in October 2023, the first spaceflight of a Pakistani

See also

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