PlayStation (officially abbreviated as PS or PS1) is a fifth generation video game console developed by Sony Computer Entertainment under the leadership of Ken Kutaragi. The console was released on December 3, 1994 in Japan, in the USA the prefix appeared on September 9, 1995, and in Europe on September 29, 1995. The console is the first gaming system in the PlayStation line. In 2000, an updated version of the console called PSone was released, which differed from the original PlayStation in a significantly smaller size. The console proved to be very popular, providing Sony a breakthrough in the gaming industry, which until then had reigned supreme by Nintendo and Sega.