5 Manufacturer : Sega Year of Release : 1983 Units sold : 2 million Best-selling game : Flicky CPU : 8-Bit Zilog Z80 @ 3.58 MHz RAM : 1kB / VRAM : 2kB Video : Texas Instruments TMS9918 Resolution : 256×192 pixels, 16 colors (21 colors palette) Sound chip : Texas Instruments SN76489 PSG Cart Size : 8kB - 48kB