PlayStation models

Sony produced several models of the PlayStation (PS1) video game console from 1994 to 2006. Most revisions of the PlayStation addressed known hardware issues or aimed to lower manufacturing costs and time. External changes were minor, for example, the removal of external I/O ports, until the introduction of the miniaturised "PS one" console revision.

The final digit in the model number represents the region code of the console. For example, SCPH-xxx1 for North America. Model numbers ending in '0' were released in Japan (NTSC-J). Models ending in '1' denote North America (NTSC-U/C). Models ending in '2' signify PAL regions including Europe and Australia. Finally, '3' indicates Asia outside of Japan. Game discs are region-locked, only working in consoles from the matching region. The default system language is Japanese for NTSC-J consoles and English for PAL/NTSC-U/C units.