Emulators are programs that can be compared to the any gaming systems that reads the games and allows you to play them. Some emulators run better than others, and there are multiple emulators for each system. You must download an emulator to play games. To use the emulator you must download it, unzip it, and load the .exe file.
Roms?
Roms are the games that are run by emulators. Download the roms and unzip then to a location you can easily remember. To play the roms, open your emulator, click file, load, and find the rom. You can also drag the rom file ontop of the emulator .exe and it will load the game for you.
