Produce a beep sound
beep(); beep('on') beep('off') s=beep()
beep() produces your computer's default beep sound.
beep()
beep('on') turns the beep on
beep('on')
beep('off') turns the beep off
beep('off')
s=beep() returns the current beep mode (on or off).
s=beep()
beep() // Make a sound beep("off") // disable the sound