十亿位元组
gigabyte n : a unit of information equal to one billion (1,073,741,824) bytes or 1024 megabytes [syn: {G}, {GB}]
gigabyte2^30 = 1,073,741,824 {byte}s = 1024 {megabytes}. Roughly the amount of data required to encode a human gene sequence (including all the redundant codons). See {prefix}. (1995-09-29)