As a direct competitor to Nintendo, Sega and the Big 'N' battled it out with subsequent gaming machines, including Sega's successful Genesis (Mega Drive) and the handheld Game Gear. Over the years, Sega, which was eventually bought by Japanese investors, developed games for the early home consoles as well as arcades, and in 1986 entered the console business with the Sega Master System. In 1965, Rosen Enterprises merged with a jukebox manufacturer and changed its name to Service Games - or short: SEGA.
Originally named Rosen Enterprises, the company focused on art export before moving into the distribution of coin-op machines and photo booths. Sega was founded in 1951 by David Rosen, an American living in Japan.