Formula One, commonly known as Formula 1 or F1, is the highest class of international racing for open-wheel single-seater formula racing cars sanctioned by the Fédération Internationale de l'Automobile (FIA). The FIA Formula One World Championship has been one of the premier forms of racing around the world since its inaugural running in 1950. The word formula in the name refers to the set of rules to which all participants' cars must conform. A Formula One season consists of a series of races, known as Grands Prix. Grands Prix take place in multiple countries and continents around the world on either purpose-built circuits or closed public roads. Ever since Pole Position in 1982, Formula One (F1) has always played a part of the racing genre in video games. Early Formula One games were typically arcade racing games, before Formula One Grand Prix (1991) popularized Formula One racing simulations on home computers.