TTY terminal device

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A tty terminal device is a character device that performs input and output on a character-by-character basis.

The communication between terminal devices and the programs that read and write to them is controlled by the tty interface. Examples of tty devices are:

  • Modems
  • ASCII terminals
  • System console (LFT)
  • aixterm under AIXwindows

The tty devices can be added, deleted, listed, and changed like any other device on your system by using the SMIT tool, or device-specific commands.