What Does Gigabyte (GB or GByte) Mean?
A gigabyte (GB or GByte) is a data measurement unit for digital computer or media storage equal to one billion (1,000,000,000) bytes or one thousand (1,000) megabytes (MB). The unit of measurement in storage capacity that follows it is the terabyte (TB), which equals 1,000 GB.
Techopedia Explains Gigabyte (GB or GByte)
One byte contains eight bits comprised of a string of 0s and 1s. These eight bits can hold 256 values, ranging from 0 to 255. Generally, a byte is the number of bits used to encode a single text character.