#include <iostream>#include <windows.h> // Sleep() #include <mmsystem.h> // mciSendString()#include <stdio.h>#include <conio.h>int open(){mciSendString("open CDAudio", NULL, 0, NULL);Beep(440,1000);cout << "Opening CD-ROM door ..." << endl;mciSendString("set CDAudio door open", NULL, 0...