Human–computer interaction (HCI), alternatively man–machine interaction (MMI) or computer–human interaction (CHI) is the study of interaction between people (users) and computers. It is an interdisciplinary subject, relating computer science with many other fields of study and research. Interaction between users and computers occurs at the user interface (or simply interface), which includes both software and hardware, for example, general purpose computer peripherals and large-scale mechanical systems, such as aircraft and power plants.
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<software, hardware> (HCI) The study of how humans interact with computers, and how to design computer systems that are easy, quick and productive for humans to use. See also Human-Computer Interface. HCI Sites. (1999-05-09)
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