What does an emulator do?

Related questions

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2. Are there any good DS emulators for Android?
3. Are there any emulators for iPhone?
4. What does DeSmuME mean?
5. Can GBA play GBC games?
6. How much did a GameBoy Advance cost when it came out?
7. How can I make my Android emulator run faster?
8. How do I install GBA emulator on Android?
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10. What does Palmetto GBA stand for?

Tags

1. #computer
2. #typically
3. #emulator
4. #devices
5. #peripheral
6. #another
7. #system
8. #software
9. #called
10. #hardware
11. #enables
12. #guest
13. #behave
14. #computing
15. #designed