The 
Sega Game Gear was 
Sega's response to 
Nintendo's 
Game Boy.  It was released in 
1991 and was basically a pocket 
Sega Master System, though it seemed to have arguably better graphics.  However, despite its technical superiority, it did not gain a significant market share due to the enormous popularity of the Game Boy. It did have a few setbacks: the backlit screen led to high battery drain, and it was rather large.  Mostly, however, it suffered from a lack of quality games, as Sega failed to sign up as many key software developers as Nintendo.  Today, the Game Gear is widely considered to have been a failure, and unlike the Game Boy no newer versions were released.  
- Main Processor:  Zilog Z80 (8-bit) 
 - Processor Speed:  3.58 MHz (same as NTSC dot clock)
 - Resolution:  160 x 144 pixels
 - Colors Available:  4,096
 - Colors on screen:  32
 - Maximum Sprites:  64
 - Sprite Size:  8x8 
 - Screen Size:  3.2 Inches
 - Audio:  4-channel tone generator
 - RAM:  24 KB
 
 
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