Gigabyte (noun)

A unit of measurement for computer data storage equal to 1,073,741,824 bytes.

Origin:

The word gigabyte is derived from the prefix "giga" meaning billion and "byte" which is a unit of measurement for computer data storage, a gigabyte is equal to 1,073,741,824 bytes of data.

Examples:

1. A 1 gigabyte hard drive can hold about 250,000 songs.
2. This computer has 8 gigabytes of RAM.
3. The file size is 5 gigabytes, it will take a while to download.
4. A gigabyte is a unit of measurement for data storage.
5. This USB drive has a capacity of 32 gigabytes.