The Code and facts of the game are typically supplied towards the emulator by way of a ROM file (a replica of game cartridge details) or an ISO picture (a copy of optical media).[citation needed] Whilst emulation softwares them selves are legal given that they do not infringe copyright protections https://emulatoronlinecom15091.blogkoo.com/a-review-of-retro-games-online-54160131