Although Sony placed little emphasis on online gaming during its first year, all that changed because of the launch of the online-capable Xbox.
Since the V12 version had already been established for this model, there were some disputes regarding these sub-versions.
In September 2004 Sony unveiled the third major hardware revision (V12, model number SCPH-70000).
Currently, most people just use V12 for both models, or V12 for the old model and V13 for the newer one.
V10 and V11 have minor changes.
Developers also complained that it was difficult to develop for the system, with little in the way of reference material from Sony for its exotic architecture.
However, the release of several blockbuster games during the 2001 holiday season pushed the PS2 far in front even as the Xbox and GameCube made their impressive debuts.
Available in November 2004, it is smaller and thinner than the old version and includes a built-in Ethernet port.
Many analysts predicted a close 3-way matchup between the PS2 and its soon-to-be-released competitors Microsoft Xbox and Nintendo GameCube, noting that the PS2's graphics were inferior but that it had the advantage of a head start, and had a wide assortment of games of every genre (Xbox's strength was in its hardware; GameCube was the cheapest of the 3 consoles).
One of them includes the old EE and GS chips, and the other contains the newer unified EE+GS chip, otherwise being identical.
The PS2 launch seemed unimpressive and gaffe-prone, compared to the well-planned launch of the Sega Dreamcast, which was making a genuine attempt to woo developers and which had better launch titles.
These included a PCMCIA slot instead of the Expansion Bay (DEV9) port of newer models.
V3 has a substantially different internal structure from the subsequent revisions, featuring several interconnected printed circuit boards.
With a price of $299.99 per console, Sony made gross sales of roughly $153,000,000.