AIBO (stylized as aibo, abbreviated as Artificial Intelligence RoBOt, homonymous with , "pal" or "partner" in Japanese) is a series of robotic dogs designed and manufactured by Sony. Sony announced a prototype Aibo in mid-1998, and the first consumer model was introduced on 11 May 1999. New models were released every year until 2006. Although most models were dogs, other inspirations included lion cubs, huskies, Jack Russell terriers, bull terrier, and space explorers. Only the ERS-7, ERS-110/111 and ERS-1000 versions were explicitly a "robotic dog", but the 210 can also be considered a dog due to its Jack Russell Terrier appearance and face. In 2006, AIBO was added into the Carnegie Mellon University Robot Hall of Fame. On 26 January 2006 Sony announced that it would discontinue AIBO and several other products in an effort to make the company more profitable. Sony's AIBO customer support was withdrawn gradually, with support for the final ERS-7M3 ending in March 2013. In July 2014, Sony stopped providing repairs for AIBO products and did not provide customer support or repair for the older AIBO robots. In November 2017, Sony announced a new generation of AIBO. The fourth generation model, ERS-1000, was launched in Japan on 11 January 2018. The second lottery sale was set on 6 February 2018. History The AIBO product line was developed at Sony's Computer Science Laboratory (CSL). Founded in 1990, CSL was set up to emulate the innovation center at Xerox's Palo Alto Research Center (PARC). CSL's first product was the Aperios operating system, which later formed the base software used by some AIBO models. When Nobuyuki Idei became president of Sony in 1995, he sought to adopt a digital agenda and gave greater prominence to CSL. Dr. Toshitada Doi is credited as AIBO's original progenitor: in 1994 he had started work on robots at CSL with artificial intelligence expert Masahiro Fujita. Fujita felt that the robot's behaviors needed to "be sufficiently complex or unexpected so that people keep an interest in watching or taking care of it". Fujita argued at the time that, while technologies such as voice recognition and vision were not mature enough for critical applications, their limited capabilities could be an novel, interesting and attractive feature for "appropriately designed entertainment robots". His early monkey-like prototype "MUTANT" included behaviors such as tracking a yellow ball, shaking hands, karate strikes and sleeping, which were later adopted in AIBOs.