CPU: Zilog Z80A @ 4 MHz
GFX: Application Specific Integrated Circuit (ASIC)
SND: General Instrument AY-3-8912
MEM: 64 kB System / 16 kB Video
RES: 160x200 (16 colors), 320x200 (4 colors) or 640x200 (2 colors)
Each resolution is referred to as "modes".
Starts at Mode 0 and go up to Mode 2.