Programming for the Gameboy/Hardware specifications

	Gameboy (Original)	Gameboy Color
CPU	8-bit LR35902 @ 4.19MHz	8-bit LR35902 @ 4.19/8.38MHz
CPU Effective speed	1.0485 MHz	1.0485/2.097 MHz
Work RAM	8KiB	32 KiB (Banked, 8KiB immediate)
Video RAM	8KiB	16 KiB
Audio	2 Pulse wave generators, 1 PCM, 1 Noise generator, 1 cartridge audio line
Display colors	2-bit shades of gray	15-bit color
Display resolution	160 × 144 pixels
Inter-system communication	Serial link	Serial link, Infrared