![]() ![]() ![]() The word terminal can also have a more traditional meaning of a device through which one interacts with a computer, typically with a keyboard and display. Other ttys, sometimes called pseudo-ttys, are provided (through a thin kernel layer) by programs called terminal emulators, such as Xterm (running in the X Window System), Screen (which provides a layer of isolation between a program and another terminal), Ssh (which connects a terminal on one machine with programs on another machine), Expect (for scripting terminal interactions), etc. #Local windows terminal emulator serialSome ttys are provided by the kernel on behalf of a hardware device, for example with the input coming from the keyboard and the output going to a text mode screen, or with the input and output transmitted over a serial line. In its most common meaning, terminal is synonymous with tty. ![]() In unix terminology, a tty is a particular kind of device file which implements a number of additional commands ( ioctls) beyond read and write. Very early in unix history, electronic keyboards and displays became the norm for terminals. The name “terminal” came from the electronic point of view, and the name “console” from the furniture point of view. Originally, they meant a piece of equipment through which you could interact with a computer: in the early days of unix, that meant a teleprinter-style device resembling a typewriter, sometimes called a teletypewriter, or “tty” in shorthand. terminal = tty = text input/output environmentĬonsole, terminal and tty are closely related.In unix terminology, the short answer is that A terminal is at the end of an electric wire, a shell is the home of a turtle, tty is a strange abbreviation and a console is a kind of cabinet. ![]()
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