It primarily competed with the Nintendo 64 and the Sega Saturn as part of the fifth generation of video game consoles. Variants The PlayStation went through a number of variants during its production run, each accompanied by a change in the part number.
From an external viewpoint, the most notable change was the gradual reduction in the number of external connectors from the back of the unit. This started very early on with the original Japanese launch units the SCPH-1000, released on December 3, 1994, was the only model that had an S-Video port, which was removed on the next release. This also led to a discrepancy where the US and European launch units had the same part number series (SCPH-100x) as the Japanese launch units, but had different hardware (Rev.
