Gigabyte

A gigabyte (GB), sometimes abbreviated as a gig, is a unit of measurement in computers and similar electronic devices. At first it meant exactly 1 billion bytes, usually referring to the number of bytes in a computer hard drive. Its meaning gradually changed over time, so that today it is often used to mean 1,073,741,824 (2³⁰) bytes, especially when referring to the random access memory (RAM) of a modern computer.