The article mentions PC sound cards, but this family of synthesizer chips was pretty common in video games overall ca. 1985-1995. They were used in Master System, Genesis, Neo Geo, Capcom CPS1/CPS2, Sega System 16, Midway Y-Unit/T-Unit, Namco System 1/2, and too many one-off Data East, Konami, and Taito boards to count.