Human-Computer Interaction put simply, is how people interact with computers, and how capable the computers are of having a meaningful interaction with humans. Human-computer interaction revolves around the psychology, needs, requirements and feelings of the users, while they use computers to perform tasks. It is a discipline concerned with the design, evaluation, cognition and implementation of computing systems for human use.

Earlier, when technology was just booming, developers would not pay much attention to the ease-of-use, since getting the tasks done, and getting the message across was the goal. Nevertheless, as technology progressed, and people began using computers more and more, the need to make the way information was showcased better was felt.

Many would argue that computers are still not user-friendly enough to establish a seamless connection for people of all age groups, however, developers and designers would say that designing or making computers is a difficult process. This is due to the fact the demand for the services a machine provides, outdrives the demand for its usability.

One crucial aspect of Human-Computer Interaction is that each user has different perceptions, or preconceived notions about interactions because each person has a unique way of learning things or picking up skills. This results in different sets of users having different preferences. This is where user experience and interface come into play. Studying users, their mindsets or their way of thinking helps designers and engineers narrow down the requirements, and provide a seamless journey for every user.

 The things we like about technology keep changing, our interests keep varying, because we have the urge to evolve and get our hands on a better version of what we have. This creates a lot of possibilities for the way we interact with computers. Users’ preferences change in a gradual manner, as they get accustomed to the new methods.