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But there are some games that only built for Windows, Nintendo or other devices, and hence you may need the game emulator for these games to run on Mac OS. This in turn helps people to run different apllications exclusively for various OS on a single platform.
It typically helps one OS to behave as another for as much amount of time as we want and then switch back to our original OS.
Emulator is the software that helps us to run multiple OS on a single hardware.
