Someone please help me.......

[Lord of Fantasy]

I can't find some of my old games, and my old NeS acts up and barely works, I remember someone in this forum telling me to use roms and emulators to play them again. Someone please explain roms and emulators and what they are.:(

[Geohound_Blitz]

an emulator is an utility that u need to play games that r not for PC on your PC,lets say its like a video game console in your PC,and the roms are just games that you load onto the emulator to be able to play them