Meaning

noun a unit of information equal to 1000 megabytes or 10^9 (1,000,000,000) bytes

noun a unit of information equal to 1024 mebibytes or 2^30 (1,073,741,824) bytes

originEtymology tree English giga- Proto-Indo-European *bʰeyd- Proto-Indo-European *bʰéydt Proto-Germanic *bītaną Proto-West Germanic *bītan Old English bītan Middle English biten English bite English byte English gigabyte From giga- + byte.

Etymology from Wiktionary, CC BY-SA 3.0