Human–computer interaction

A woman teaching girls in Afghanistan how to use computers. Human use of computers is a major focus of the field of HCI.

Electrodes are used for speech recognition.

Human-computer interaction (often shortened to HCI) is a field of computer science that looks at the ways in which a human uses a computer and interacts with it. The focus in human-computer interaction lies in the design of interactive systems, and in the interfaces with which the human interacts.principles of human–computer interaction.principles of human–computer interaction.principles of human–computer interaction.principles of human–computer interaction.principles of human–computer interaction.principles of human–computer interaction.