Question

what is emulator in computer ?

Answer 1

computing, an emulator is hardware or software that enables one computer system to behave like another computer system. An emulator typically enables the host system to run software or use peripheral devices designed for the guest system. 

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Answer 2

emulator is an app or software which imitates another kind of software

for example, emulators like bluestacks run like an android phone, and amc users can use parallels desktop if they want to run windows applications!