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C/C++ Source or Header  |  1991-08-05  |  311 b   |  13 lines
  1. /* SOUND.C --- p. 674 */
  2. #include <dos.h>
  3. void main()
  4. {
  5.     unsigned duration, frequency;
  6.     printf("Enter frequency of sound(in Hz): ");
  7.     scanf(" %u", &frequency);
  8.     printf("Enter duration of 440-Hz tone (in milliseconds): ");
  9.     scanf(" %u", &duration);
  10.     sound(frequency);
  11.     delay(duration);
  12.     nosound();
  13. }