Yes, it is legal to use NES emulators as long as you own the original game cartridges or have obtained the ROMs legally.
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The BIOS for the NES/Famicom is not legally redistributable. In order to legally obtain a copy, you must dump the BIOS from your console yourself. Most NES/Famicom emulators use low-level emulation and thus do not need a copy of the BIOS.
If you're talking about the console game emulators, then you'll have to download them onto your computer from different sites such as theemulatorzone.com or u can use Google to search "NES, SNES, N64, GBA, NDS, etc. emulators". Hope this helps! =D
Emulators are legal and roms are illegal. The only way you can have a ROM legally is if you have the game already, someone else who has the original copy gives you one as a gift, or get a noncommercial ROM. I hope I helped.
Emulators are a software emulating another computer. For example, an NES emulator is a software that is ran on a desktop PC to look like the NES (Nintendo Entertainment System), whereas you can play NES titles (Cartridges emulated as ROMs) using your keyboard or a controller for the NES controller. However, emulators are not just for other computers. Technically, an emulator is a piece of software that allows foreign (different language or setup) hardware or software to interact with the current system. The NES example is a good one. An example with software is like installing windows software on linux. It cannot be done due to language conflicts. An emulator solves this problem.
Videe game emulators are 100% legal as long as you own the game's hard copy. So if you own Megaman 7 hard copy, it's legal to have the ROM.
Yes they are legal, as long as you are not spending, or getting $$ from themor using them for other things
Technically, both are legal.
Yes.
The great thing about Dreamcast is that it will read a regular CD that you can burn off your computer. All you need to do is find a site with the emulators you need, burn them to disc (in Dreamcast format), and then game on! Just make sure you burn the emulator to one disc and the games to a separate one.
there r no game boy emulators only super Nintendo entertainment system or Nintendo entertainment system. or snes or nes