GB

GB

(1) (GB) (GigaByte) One billion bytes (technically 1,073,741,824 bytes). See giga and space/time.

(2) (Gb) (GigaBit) One billion bits (technically 1,073,741,824 bits). Lower case "b" for bit and "B" for byte are not always followed and often misprinted. Thus, Gb may refer to gigabyte. See GB/sec, giga and space/time.

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glass block, glass brick

A hollow block of glass, usually translucent with textured faces; has relatively low thermal-insulation and low fire-resistance value; used in non-load-bearing walls.

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1.	(unit)	GB - gigabytes or gigabits - see MB. Giga stands for 10^9 - a US billion, or in computing for 2^30. The text of a thirty volume encyclopaedia would require about one gigabyte of ASCII storage.
2.	(unit)	Gb - Gigabit. 10^9 bits. Might also be wrongly used for gigabyte (GB).
3.	(networking)	gb - (Great Britain) A country code for United Kingdom. "uk" is generally used instead.