/*Keep sounding the bell unless 'Q' or 'q' is pressed */
#include <stdio.h>
#include  <conio.h>
 main()
 {
 unsigned char data;
 clrscr();
 printf("To Stop the Bell Sound Press Q or q Key\n");
 do
  {
  while(!kbhit())       //keep sounding Bell unless a key is pressed
  print("%c",0x07);
  data=getch();         //get the key pressed
  }
  while(!(data=='q'||data=='Q');        //continue as long as it is not Q or q
 }