time. The fourth generation also was the first time compact discs were considered a viable port for video game retail sales with the CD-i. Some of the most notable systems released during this generation were the Super Famicom/Super Nintendo Entertainment System (1990), the Sega Mega Drive/Genesis (1988), and the Neo Geo (1991). Nintendo's Game Boy was also released during the fourth generation, which would later become the most popular series of handheld gaming systems during the 1990s. A rivalry between Sega and Nintendo occurred during this generation, starting the first ever console war. History Golden age of arcade games In the early-1980s, arcade games were a vibrant industry. The arcade video game industry in the US alone was generating $5 billion of revenue annually in 1981 and the number of arcades doubled between 1980 and 1982. The effect video games had on society expanded to other mediums as well such as major films and music. In 1982, "Pac-Man Fever" charted on the Billboard Hot 100 charts and Tron became a cult classic. Third-party development and an oversaturated market Following a dispute over recognition and royalties, several of Atari's key programmers split and founded their own company Activision in late 1979. Activision was the first third-party developer for the Atari 2600. Atari sued Activision for copyright infringement and theft of trade secrets in 1980, but the two parties settled on fixed royalty rates and a legitimizing process for third parties to develop games on hardware. In the aftermath of the lawsuit, an oversaturated market resulted in companies that had never had an interest in video games before beginning to work on their own promotional games; brands like Purina Dog Food. The market was also flooded with too many consoles and too many poor quality games, elements that would contribute to the collapse of the entire video game industry in 1983. Video game crash of 1983 By 1983, the video game bubble created during the golden age had burst and several major companies that produced computers and consoles had gone into bankruptcy. Atari reported a $536 million loss in 1983. Some entertainment experts and investors lost confidence in the medium and believed it was a passing fad. A game often given poster child status to this era, E.T. the Extra-Terrestrial had such bad sale figures that the remaining unsold cartridges were buried in the deserts of New Mexico. Rise of computer gaming