DOS device names


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DOS device names

Reserved names for input/output devices. These legacy ports are rarely used today.
Reserved name   Device

  AUX             1st serial port
  PRN             1st parallel port
  COM1 thru COM4  Serial ports
  LPT1 thru LPT3  Parallel ports
  CON             Keyboard and screen
  NUL             Dummy (for testing)
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