Gigabyte

Pronunciation

• UK IPA: /ˈɡɪɡəbaɪt/
• US IPA: /ˈɡɪɡəbaɪt/, /ˈdʒɪɡəbaɪt/

Origin

- + byte

Full definition of gigabyte

Noun

1. (SI) 10⁹, one billion (1,000,000,000) bytes. SI symbol: GB
• 1981, IBM, IBM 3380 Direct Access Storage Description and User's Guide, page 1The IBM 3380 Direct Access Storage is a disk storage device with a storage capacity of 2.5 gigabytes (billion bytes) per unit, an increase of almost four times the capacity of the IBM 3350 Direct Access Storage.
2. (computing, colloquial) Imprecisely, a gibibyte or 1024³ (1,073,741,824) bytes. SI symbol: GiB, computing symbol: GB.

Coordinate terms

• Previous: megabyte
• Next: terabyte

Related terms

• gibibyte
• gigabit

Synonyms

• gig