ps3 emulator emulates, copies the function of the ps3 games on your computer, if you have the roms of the game. Till now there are no emulators for ps3, but PS2, there are three of'em, PS2emu, NeutrinoSX2 (not recommended for commercial games) & PCSX2 (highly recommended).
Quote from Wikipedia on PCSX2 "several games have full functionality" not quite what the PS2 does is it. see related link to see how worthless the emulator is when the alternative is buying a PS2 for less than $100. no wonder there is no PS3 emulator
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In theory onlyno because there is not a working emulator for PS3 games and current PCs could not run it if it was developed
The best PS3 Emulator can be found on the Emulator Zone website. The download on the site is called rpcs3, it is for Windows and is a free download. It has a 3.5 star rating.
There is currently no functional PlayStation 3 emulator in existence.
There are no working PS3 emulators. The PS2 system has some poorly working emulators that can barely manage to complete some PS2 titles with a lot of work and very poor results on over half the titles. The much more complex PS3 system does not have a working emulator, but it could still be illegal to download Sony Software if it was included in the emulator even if the emulator does not work
if your talking about halo 2 or 3 no not legally anyway. for halo 1 though you "could" load an xbox emulator onto your ps3 and play it like that but most of the emulators for ps3 are quite buggy still.