Computer, 3DO, PC-Engine, Wonderswan, MSX, Amiga, Atari, etc.
By sypherceBizHawk is a A multi-system emulator written in C#. BizHawk provides nice features for casual gamers such as full screen, and joypad support in addition to full rerecording and debugging tools for all system cores.
Nintendo Entertainment System, Famicom, Famicom Disk System
Super Nintendo Entertainment System and Super Famicom
Game Boy, Super Game Boy, and Game Boy Color
Game Boy Advance
Sega Master System, Game Gear, and SG-1000
NEC PC Engine (AKA TurboGrafx-16), including SuperGrafx and PCE CD
TI-83 graphing calculator
Wonderswan and Wonderswan Color
Sony PlayStation Portable