Sega Consoles

The Dreamcast is a video game console which was released by Sega in late 1998 and was the successor to the Sega Saturn. It was the first entry in the sixth generation of video game consoles, releasing before its contemporaries — Sony's PlayStation 2, Microsoft's Xbox and the Nintendo GameCube.
Sega discontinued the Dreamcast in North America in March 2001 and withdrew entirely from the console hardware business, making it the company's final console. However, support of the system continued in Europe and Oceania until the end of 2002, as well as in Japan, where consoles were still sold until 2006 and new licensed games continued to be released. According to Bernie Stolar, former President and CEO of Sega of America, the Dreamcast was discontinued because the new chairman of Sega wanted the company to focus on software.

The Sega Saturn is a 32-bit video game console that was first released on November 22, 1994 in Japan, May 11, 1995 in North America, and July 8, 1995 in Europe. The system was discontinued in North America, Europe, and Australia in 1998, and in 2000 in Japan.

While it was popular in Japan, the Saturn failed to gain a similar market share in North America and Europe against Sony's PlayStation and the Nintendo 64, its main competitors.
According to a July 2007 GamePro article, the Saturn sold 9.5 million units worldwide.

The Mega Drive is a fourth-generation video game console released by Sega in Japan in 1988 and Europe, Australia and other PAL regions in 1990. The console was released in North America in 1989 under the name Sega Genesis, as Sega was unable to secure legal rights to the Mega Drive name in that region. The Mega Drive was Sega's third home console and the successor to the Sega Master System, with which it is electronically compatible.

The Game Gear was a portable version of the Master System with a lower resolution screen, but allowed for a larger color palette. In addition, it could also produce stereo sound (through headphones) as opposed to the Master System's monaural output, though very few games made use of the stereo capabilities. Unlike the original Game Boy, in which the screen was positioned above the buttons, the system was held in a landscape position, with the controls at the sides, making it less cramped to hold.

The Master System (abbreviated to SMS) is a third-generation 8-bit cartridge-based video game console that was manufactured and released by Sega in 1986 in North America, seven months after the original NES, and in 1987 in Europe. Its original Japanese incarnation was the Sega Mark III, which was first released in 1985.