The Playstation 4 is a home console produced by Sony Computer Entertainment. The console was announced as the successor to the Playstation 3 games console. It is part of the 8th game console generation and competes with the Xbox One and Wii U. The Playstation 4 was announced on Feburary 20th 2013 and was released in November 15th, 2013 in North America, November 29th in Europe and Australia, and finally released in Japan on Feburary 22nd 2014.
The Playstation 4 features a hardware architecture that is a lot more similar to modern PCs and other game consoles. This is a welcome change from the Cell processor architecture that was used on the Playstation 3, which was notoriously difficult to work with.