The correct answer is Emulator.The emulator is a hardware device or software program that enables one computer system to imitate the functions of another computer system.In computing, an emulator is a hardware or software that enables one computer system (called the host) to behave like another computer system (called the guest).An emulator typically enables the host system to run software or use peripheral devices designed for the guest system.Emulation refers to the ability of a computer program in an electronic device to emulate (or imitate) another program or device.