What is NES? What Opens a NES? File Format List from WhatIs.com

File Extension

NES File Format

Emulator ROMS for game console (Nintendo)

NES is a file extension for a video game emulator ROM file extracted from a Nintendo Entertainment System (NES) cartridge-based home video game console.

ROM stands for Read Only Memory and is an accurate description, as cartridges generally could not be written to. A ROM file is only usable on an emulator for the system that the game originated from.


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This was last updated in August 2010
Editorial Director Margaret Rouse

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