GB, or Gb may refer to:

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Science and technology edit

Computing and electronics edit

  • Gigabit (Gb), a unit of information used, for example, to quantify computer memory or storage capacity
  • Gigabyte (GB), a unit of information used, for example, to quantify computer memory or storage capacity
  • Gain–bandwidth product, product of amplifier midband gain and bandwidth
  • Game Boy, a handheld video game console
  • Guobiao standards, Chinese National Standards
    • GB 2312, an encoding scheme for rendering Simplified Chinese characters; also has partial support for Traditional, and some other languages, though in practice web browser support it as (i.e. with full support):
    • GB 18030, an encoding scheme for rendering Simplified Chinese characters, but with full support for Traditional, and all languages Unicode supports, since it's a full Unicode Transformation Format

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