The term 'bigger than mega' can be answered with the word 'giga', which is a unit of measurement for digital information and is equal to one billion bytes. Giga is abbreviated as 'G' and is often used to measure the size of computer files, such as music or video files. It is also used to measure the speed of internet connections. Giga is the third largest unit of measurement in the International System of Units (SI), preceded by tera and peta.