CPU: 8-bit Zilog Z80A @ 3.54MHz for PAL/SECAM, 3.57MHz for NTSC. Graphics: VDP (Video Display Processor) variant of Texas Instruments TMS9918.
Screen resolutions 256×192 and 256×224. PAL/SECAM also supports 256×240.
Up to 32 simultaneous colors available from a palette of 64 (can display 64 colors using programming tricks). Sound (PSG): Texas Instruments SN76489. 4 channel mono sound. Sound (FM): Yamaha YM2413. mono FM synthesis. Boot ROM: 8 KB to 256 KB, depending on built-in game. Main RAM: 8 KB, can be supplemented by game cartridges. Video RAM: 16 KB. Media: Game Card slot (not available in the Master System II). Game Cartridge slot. Japanese and South Korean consoles use vertical shaped 44-pin cartridges, the same shape as SG-1000 and Mark II,
while all other consoles use 50-pin cartridges with a horizontal shape.