The study of how people interact with computers and how to build computers to better assist
human activities is known as human-computer interaction (HCI). It is a multidisciplinary field that
integrates design, psychology, and computer science to produce user interfaces that are both
practical and understandable.
Usability, which refers to how simple it is for people to use a system or device, is one of the
fundamental principles of HCI. Usability is significant because it affects how successfully users can
achieve their objectives when utilizing a computer or other technology. People may grow frustrated
and abandon up if a system is challenging to use, which could reduce productivity and general
satisfaction.