Template:Infobox computing device/Master System
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| Top: North American/European Master System Bottom: Japanese Sega Mark III | |
| Developer | Sega |
|---|---|
| Manufacturer | Sega |
| Type | Home video game console |
| Generation | Third |
| Release date | October 20, 1985 |
| Discontinued | JP: 1991 NA: 1992 KO: 1994 EU: 1996 |
| Predecessor | SG-1000 |
| Successor | Sega Genesis |
| Emulated | ✓ |