SCE is a highly versatile acronym with meanings spanning science, technology, education, and business. In science, it can refer to the saturated calomel electrode used in pH measurement, or sister chromatid exchange, a genetic process. In the tech world, it is famously known as Sony Computer Entertainment (now Sony Interactive Entertainment), the former video game division. Educationally, it denoted the Hong Kong School Certificate Examination (1974–2011), while in business it stands for the major utility Southern California Edison. Beyond these, SCE also serves as the IATA code for State College Regional Airport and even refers to the historical Swedish Cyprus Expedition in archaeology.