Human-computer interaction (HCI) is the study of the design and use of computer technologies. It examines the way users interact with computers and interfaces in the present day.
Although initially focused on computers, HCI has expanded to encompass almost all types of information technology design. An interaction between the user and a computer is meant to provide a new point-of-view to the user.
Human-computer interaction (HCI) consists of four main components: the user, the task, the tools/interface, and the context. In HCI studies, the user's behavior and habits are observed and analyzed together as the task is completed. Applied correctly, virtual reality can resemble the real environment and is a good demonstration of excellent HCI. Another example is voice search, such as Amazon Alexa or Google Voice Search.