gigabyte
<unit> 2^30 = 1,073,741,824 bytes = 1024 megabytes.
Roughly the amount of data required to encode a human gene sequence (including all the redundant codons).
See prefix.
Nearby terms:
giga- « gigabit « gigabits per second « gigabyte » gigaflop » gigaflops » GigaHertz