6 Manufacturer : Sega Year of Release : 1990 Units sold : 11 million CPU : 8-Bit Zilog Z80 @ 3.58 MHz RAM : 8kB / VRAM : 16kB Video : Sega VDP (custom Texas Instruments TMS9918) Resolution : 160 x 146 pixels, 32 colors (4096 colors palette) Sound : TI SN76489 PSG Cart Size : 32kB - 1MB Screen : 8.128cm (3.2 inches), backlit LCD