7 Manufacturer : Sharp Year of Release : 1987 OS : Human68k CPU : Motorola 68000 running @ 10 MHz RAM : 1-4 MB (expandable up to 12 MB) / VRAM : 1056 KB ROM : 1 MB (128 KB BIOS, 768 KB Character Generator) GPU : Sharp-Hudson Custom Chipset Sound chip : Yamaha YM2151 Resolution : 512x512 (65536 colours)