| Sega Sg-1000 Mark Iii |
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The SG-1000 Mark III is an 8-bit Video Game Console made by Sega . It was the original Japan ese incarnation of the Sega Master System . HISTORY The Mark III was released in Japan on October 20 , 1985 to compete with the Famicom , following on from the SG-1000 Mark I and SG-1000 Mark II . The Mark III was built similarly to the Mark II, with the addition of improved video hardware and an increased amount of RAM . The system is Backwards Compatible with earlier SG-1000 titles. As well as the standard cartridge slot, it has a built-in slot for "Sega Cards", which are physically identical to the cards for the Sega SG-1000 "Card Catcher" add-on. The Mark III was redesigned as the Sega Master System for release in other markets. This was mainly a cosmetic revamp; the internals of the console remained virtually the same. The redesigned console was itself released in Japan in 1987 , but with the addition of a built-in Yamaha YM2413 FM sound chip ''(this had been an optional extra on the Mark III)'', Rapid Fire Unit, and 3-D glasses adapter. Sega Master System game cartridges released outside Japan had a different shape and pin configuration to the Japanese Master System/Mark III cartridges. This may be seen as a form of Regional Lockout . Neither the Mark III nor the Japanese Sega Master System were commercially successful, due to strong competition from the Nintendo Famicom . The final Japanese game release was Bomber Raid , on February 4 , 1989 . SPECIFICATIONS
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