History: What does the diaphragm in the microphone do?

What does the diaphragm in the microphone do?

• The diaphragm samples the analog waveform from the microphone.
  This is the job of the converter.
• The diaphragm moves with changes in air pressure, and the energy represents the sound.
  Perfect!
• The diaphragm changes the the amplitude over time into a waveform.
  This is the definition of converter.
• The diaphragm sends the array of integers representing the sound into the computer.
  This is the job of the converter.