on March 24, 2005, and in Europe and Australia on September 1, 2005. The console has since seen two major redesigns, with new features including smaller size, more internal memory, a better quality LCD screen and lighter weight. PlayStation 3 The launch date for the PS3 was announced by Hirai at the pre-E3 conference held at Sony Pictures Studios in Los Angeles, California, on May 8, 2006. The PS3 was released in Japan on November 11, 2006, and the U.S. date was November 17, 2006. Technology journalists observed that Sony had followed what Microsoft did with the Xbox 360, and produced the PS3 in two versions: one with a 20GB hard drive and the other with a 60GB hard drive. The PS3 utilizes a unique processing architecture, the Cell microprocessor, a proprietary technology developed by Sony in conjunction with Toshiba and IBM. The graphics processing unit, the RSX 'Reality Synthesizer', was co-developed by Nvidia and Sony. Several variations of the PS3 have been released, each with slight hardware and software differences, and each denoted by the varying size of the included hard disk drive. PlayStation Vita The PS Vita is the successor to the PlayStation Portable. It was released in Japan and other parts of Asia on December 17, 2011, and then in Europe, Australia and North America on February 22, 2012. Internally, the Vita features a 4-core ARM Cortex-A9 MPCore processor and a 4-core SGX543MP4+ graphics processing unit, as well as LiveArea software as its main user interface, which succeeds the XrossMediaBar. On March 1, 2019, Sony has ended production of the system and physical cartridge games. PlayStation 4 The PS4 was announced as the successor to the PS3 and was launched in North America on November 15, 2013, in Europe on November 29, 2013 and in Japan on February 23, 2014. Described by Sony as a "next generation" console, the PS4 included features such as enhanced social capabilities, second-screen options involving devices like the handheld PlayStation Vita, a membership service and compatibility with the Twitch live streaming platform. Following a January 2014 announcement by the Chinese government that the country's 14-year game console ban would be lifted, the PS4 was scheduled to be the first Sony video game console to be officially and legally released in China since the PlayStation 2—the ban was enacted in 2000 to protect the mental health of young people. Around 70 game developers,