PlayStation 2 models were produced from 2000 to 2013. Some PlayStation 2 (PS2) revisions only change in their internal construction while others feature substantial external changes. Each region receives a different model number; for example, the V18 was released in North America as SCPH-90001, in Australia as SCPH-90002, and in Hong Kong as SCPH-90006. The final digit is a region code with no bearing on the hardware; many games and DVDs are restricted to certain regions, and the system software displays in different languages. A total of 5 different models of the PS2 were produced.
The PS2 is primarily differentiated between models with the original "fat" case design and "slimline" models introduced at the end of 2004. In 2010, a television incorporating a PS2 was introduced.[1]