Sega Enterprises Ltd was formed by the joining of coin-op amusement machine businesses Service Games and Rosen Enterprises in 1960.

David Rosen, one of the co-founders of Sega, passed away on Christmas Day. His funeral took place on January 2 at Inglewood Park Cemetery in California, according to RePlay Magazine. Rosen founded Sega after staying in Japan after he completed his Air Force service in the Far East.