IPA: /ˈɡɪɡəˌbaɪt/
KK: /ˈgɪgəˌbaɪt/
A unit of measurement for computer memory or data storage that is equal to one billion bytes or 1,024 megabytes.
My new computer has a storage capacity of 256 gigabytes.
Gigabyte → It is formed from "giga-" (from Greek "gigas", meaning giant) and "byte" (a unit of digital information). The word "gigabyte" refers to a unit of digital information that is a billion bytes, hence the term giant byte.
Think of 'giga-' meaning giant, which helps you remember that a gigabyte is a giant unit of digital information, specifically a billion bytes.