A unit of measuring data size. It is either 1,000,000,000 or 1024 megabytes, depending on how your computer reads it. A DVD can handle 4.7 gigabytes. A blu-ray disc can handle 25.
Basically, the more gigabytes your hard drive can take, the more porn you can shove on it.
by anonymous person 12345 May 06, 2009