A game ROM is a digital copy of a video game that is extracted from its original cartridge or disc. The term "ROM" stands for "Read-Only Memory," which refers to the type of memory used in game consoles to store game data. These files allow players to run games on emulators, which are software programs that mimic the hardware of the original gaming system. Game ROMs are often used for preservation and accessibility, enabling players to enjoy classic games on modern devices. However, the legality of downloading and sharing ROMs can be complex, as it often depends on copyright laws and whether the original game is still being sold.