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TTY may refer to:


  • Teleprinter, also called a teletypewriter (TTY), an electromechanical typewriter paired with a communication channel
  • Telecommunications device for the deaf (TDD), a teleprinter designed for persons with hearing or speech difficulties
  • Text terminal, teleprinter replacement, a serial computer interface for text entry and display
  • Terminal emulator, teleprinter replacement, a program that emulates a video terminal within some other display architecture
  • getty (Unix); the so-called TTYs on Linux, allowing switching between X window system and command-line interface
  • tty (unix), a command on Linux terminal

Other uses[edit]