Step 1. Find an emulator of the video game console you are wanting to play on your computer.
There are many websites dedicated solely to storing emulators and ROMs for free to download. At the bottom of this thread find the most popular Roms.
Step 2. Once you have found the emulator you wish to use, download it.
Don’t forget to check it to make sure it doesn’t infect your computer with a virus.
Step 3. Remember that emulators are only part of what you need to…
How does an Emulator Work with Roms
Source: PS4 News – How does an Emulator Work with Roms