 The SG @-@ 1000 ( Japanese : エスジー ・ セン , Hepburn : Esu Jī Sen ) , also known as the Sega Computer Videogame SG @-@ 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 market , and was released in 1983 . It was the first home video game console to use a cartridge @-@ as its primary form of storage medium .
The SG @-@ 1000 was not a commercial success , and was discontinued in 19