 In the early 1980s, Japanese personal computers such as the NEC PC-88 and PC-98 featured audio programming languages such as Music Macro Language (MML) and MIDI interfaces, which were most often used to produce video game music.Fujitsu also released the "FM Sound Editor" software for the FM-7 in 1985, providing users with a user-friendly interface to create and edit synthesized music.The widespread adoption of FM synthesis by consoles would later be one of the major advances of the 16-bit era, by which time 16-bit arcade machines were using multiple FM synthesis chips.