a standalone unit. The PlayStation was released in Japan on December 3, 1994, and later in North America on September 9, 1995. By the end of the console 12-year production cycle, the PlayStation had sold 102 million units. PlayStation 2 SCEI's second home console, the PlayStation 2 (PS2) was released in Japan on March 4, 2000, and later in North America and Europe in October and November 2000, respectively. The PS2 is powered by a proprietary central processing unit, the Emotion Engine, and was the first video game console to have DVD playback functionality and also backwards compatibility with the original PlayStation games included out of the box. The PS2 consisted of a DVD drive and retailed in the U.S. for US$299. SCEI received heavy criticism after the launch of the PS2 due to the games released as part of the launch, difficulties that it presented for video game designers, and users who struggled to port Sega Dreamcast games to the system. However, despite these complaints, the PlayStation 2 received widespread support from third party developers throughout its lifespan on the market. On December 28, 2012, Sony confirmed that it would cease production of the PS2 through a gradual process that started in Japan—the continuing popularity of the console in markets like Brazil and India meant that PS2 products would still be shipped, while games for the console were released in March 2013. The PS2 stands as the best-selling home video game console in history, with a total of 155 million consoles sold. Writing for the ExtremeTech website at the end of 2012, James Plafke described the PS2 as revolutionary and proclaimed that the console "turn[ed] the gaming industry on its head": Aside from being the “first” next-gen console, as well as providing many, many people with their first DVD player, the PlayStation 2 launched in something of a Golden Age of the non-PC gaming industry. Gaming tech was becoming extremely sophisticated ... Sony seemingly knew the exact route toward popularity, turning the console with the least powerful hardware of that generation into a juggernaut of success. PlayStation Portable The PlayStation Portable (PSP) was SCEI's first foray into the small handheld console market. Its development was first announced during SCE's E3 conference in 2003, and it was officially unveiled during their E3 conference on May 11, 2004. The system was released in Japan on December 12, 2004, in North America