An input/output device at which data enters or leaves a computer system is

An input/output device at which data enters or leaves a computer system is Correct Answer Terminal

A device used to enter data into a computer. It may refer to a one-way handheld data terminal used for data collection; however, "input terminal" often refers to an input/output terminal, in which a screen, readout or printer provides feedback from the computer. See terminal.
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