GB

Definition	GigaByte(s)
Category	Computing » General Computing
Country/Region	Worldwide
Popularity
Type	Symbol

What does GB mean?

Gigabyte (GB) is a unit of digital information or computer storage.
Although the prefix giga means 1 billion, which is equivalent to 1,000,000,000 or 10⁹ bytes. The term GigaByte has historically been used to refer to either 10⁹ bytes or 2³⁰ bytes, dependent upon context, in the fields of computer science and information technology.

Base 10 (Decimal)
1 gigabyte (GB) = 10⁹ bytes = 1,000,000,000 bytes

Base 2 (Binary)
1 gibibyte (GiB) = 2³⁰ = 1,073,741,824 bytes

Note:
Technically, a gigabyte (GB) is a power of ten, while a gibibyte (GiB) is a power of two, which is appropriate for binary machines.