Human-Computer Interface

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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The user interface (or Human Machine Interface) is the aggregate of means by which people (the users) interact with a particular machine, device, computer program or other complex tool (the system). The user interface provides means of:Input, allowing the users to manipulate a systemOutput, allowing the system to produce the effects of the users' manipulation.
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<software, hardware> (HCI) Any software or hardware that allows a user to interact with a computer. Examples are WIMP, command-line interpreter, or virtual reality.
See also Human-Computer Interaction.
(1999-05-09)