It was released on September 15, 2010 in Europe; September 19, 2010 in North America and October 21, 2010 in Japan.
The PlayStation 3 was invented by Sony in Japan.
Sony.
Ken Kutaragi
Answer Sony
Because it was a new addition of Playstation 2.
A PSP, a PlayStation 1-3, and sometimes TV's. and now the PlayStation move
Sony developed it and they are a company with headquarters in Japan
Sony Entertainment invented PlayStation 3. This is the successor to the PlayStation name starting with Sony PlayStation (also known as Psone, PS1, and PSX) Followed by the PlayStation 2 (also known as PS2 and PSX2.) Followed by the PS2 Slim. then the PSP-1000,2000,3000 and most recently the PSP-Go.
Why PlayStation 2 was InventedThe Sony PlayStation 2 was Invented because Sony wants to keep making money and to please the fans of the PlayStation 1. The PS1 was getting out-dated so they made it to keep the ball rolling. The PlayStation 3 is coming as well for the same reasons.
Sony's first video game console, the PlayStation, was invented on December 3, 1994.
It was first introduced by Sony Computer Entertainment in Japan on December 3, 1994.
Sony/Playstation... Not counting the ones they don't make. But they are the ones which made it Specially for the Playstation. They did not invent it, as you can use other brands of microphones on it.