The PlayStation[a] (abbreviated as PS, commonly known as the PS1 or its codename PSX) is a home video game console developed and marketed by Sony Computer Entertainment.

It was first released on 3 December 1994 in Japan, 9 September 1995 in North America, 29 September 1995 in Europe, and 15 November 1995 in Australia, and was the first of the PlayStation line of video game consoles.

As a fifth-generation console, the PlayStation primarily competed with the Nintendo 64 and the Sega Saturn.