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A gigabyte is a measurement unit used in computers and other electronic devices. It is bigger than the other most popular and used in everyday practice units – byte, kilobyte and megabyte. When it comes to measuring disc storage 1 gigabyte (typed GB but not Gb which is used as short of gigabit) is equal to 1 000 000 000 bytes or 10 to the 9th power. This is how it is standardized in the International System of Units (SI).


Gigabyte Definition and Consumer Confusion

Like we mentioned before when we measure hard disc capacity 1 gigabyte is equal to 10 to the 9th power bytes. This also applies to Internet bandwidth amount of traffic. However when we need to measure the amount of RAM memory for example then 1 gigabyte is equal to 1 073 741 824 bytes because of it 2 to the 30th power bytes. Things get more confusing when it comes to hard drives because operating systems like Microsoft Windows use the 2 to the 30th power to measure hard disc space. Therefore if a customer purchases a computer with 400GB hard disc capacity then after formatting Windows will display that there are total 372GB available space.
Gigabyte is the best choice to measure files or data capacity with a larger size. Other examples of gigabyte-sized storage include dual-layered Blu-ray discs that can hold 50GB and DVD-R discs which hold 4.7GB (equal to 4700MB).
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