When you do, your computer will run that old school game. So an emulator is a program you run, the ROM is the file you open with it. A ROM is a ripped copy of the actual game cartridge or disc of yesterday.An emulator is a piece of software that mimics the hardware of an old-school console, giving your computer a way to open and run these classic games.To play old school console games on your computer, you need two things: an emulator and a ROM. Here's how emulation works, and how to set it up on your Windows PC. This isn't exactly mainstream cultural knowledge, and can be a little confusing for beginners. It's by no means new, but you shouldn't feel bad for not knowing about it. What you saw, my friend, is called emulation.
