1. One billion (1000 million, 109).
2. In data storage, 1024 Y 1,048,576 (230) or 1000 Y 1,048,576. See also gigabyte, gigaflops, gigahertz, kilo-, mega-.
Prefix of measurement meaning one thousand millions (109). abbr. G. Prefix signifying multiplication by 109 (1,000,000,000 or 1 billion), as in gigahertz, a unit of frequency equivalent to 1 billion hertz.

A unit of information equal to one billion (1,000,000,000) bits.

The IEEE standard dubbed 802.3z, which includes support for transmission rates of 1 Gbps (gigabit per second)—1000 Mbps (megabits per second)—over an Ethernet network. The usual Ethernet standard (802.3) supports only up to 100 Mbps. Compare Ethernet/802.3.

See Cat 5 cable.

A measurement of data transfer speed, as on a network, in multiples of 1,073,741,824 (230) bits. Acronym: Gbps.

1. 1024 megabytes (1024 x 1,048,576 [230] bytes).
2. One thousand megabytes (1000 x 1,048,576 bytes). Acronym: GB.
A unit of information equal to one billion (1,000,000,000) bytes or one thousand megabytes; SYN. Gigabyte, G, Gb, GB.
1000 or 1024 Megabytes, depending on who is measuring.
In computing, a measure of memory capacity, equal to 1,024 megabytes. It is also used, less precisely, to mean 1,000 billion bytes.

A unit of measure for the calculating speed of a computer equal to one billion floating-point operations per second.

A measure of computing performance: one billion (1000 million) floating-point operations per second. Acronym: GFLOP. See also floating-point operation.

A measure of frequency: one billion (1000 million) cycles per second.Abbreviation: GHz.
1,000,000,000 periods per second; SYN. GHz, gigacycle per second, gigacycle, Gc.

Of enormous or grotesquely large proportions.

ETYM Latin gigas, -antis, giant. Related to Giant.
So exceedingly large or extensive as to suggest a giant or mammoth; SYN. mammoth.

Hugely, enormously, in a gigantic manner

Killing of a giant.

Excessive growth; acromegaly; excessive largeness of stature SYN. giantism.
Excessive height mostly due to overproduction of growth hormone during childhood causing abnormal growth.