A gigabyte (GB) is equivalent to about 1 billion bytes. There are two standards for measuring the number of bytes in a gigabyte: base-10 and base-2. Base-10 uses the decimal system to show that 1 GB equals one to the 10th power of bytes, or 1 billion bytes. This is the standard most data storage manufacturers and consumers use today. Computers typically use the base-2, or binary, form of measurement. Base-2 has 1 GB as equal to 1,073,741,824 bytes. The discrepancy between base-10 and base-2 measurements became more distinct as vendors began to manufacture data storage media with more capacity.