The , also known as the
Sega Game 1000, is a
cartridge-based home video game console manufactured by
Sega and released in Japan, Australia, and other countries. It was Sega's first entry into the home video game hardware business, and provided the basis for the more successful
Master System. Introduced in 1983, the SG-1000 was released on the same day that
Nintendo released the
Famicom in Japan. The SG-1000 was released in several forms, including the
SC-3000 computer and the redesigned
SG-1000 II, released in 1984.