Human and Computer Interaction

Interaction of the 2-way communication between people (users) and computer systems. The interaction is maximized when both parties able to provide stimulus and response (action and reaction) are mutually supportive, if one can not, then the interaction will mengalamihambatan or even toward the goal refraction.
Definition of human and computer interaction is a relationship between humans and computers that have certain characteristics in order to achieve a certain goal by running a system interface.
Without realizing it we (humans / user) have to interact or dialogue with an object (screen), which is in the form of pressing a button numbers and letters on the keyboard or doing a little touch on mouse.Yang then input the results will change shape to the information or data as expected humans to tertampilnya new information on screen or even a printer (printer)
Humans are rarely aware of the process of interaction with the computer. Human interaction is a process realized when he found the problem and did not find a solution pemecahannya.Biasanya blame human interface less innovative, less attractive, kurangkomunikatif
Cognitive Psychology
Is a branch of cognitive psychology approach to understanding human behavior. Cognitive psychology to learn about how people receive, perceive, learn, reason, remember and think about the information.
Some can be directly applied to applications, eg sharpness / clarity of the color blue is not good that the color blue is not supposed to be used for important details.
Another example of the psychology of a person to an operating system, the operating system commonly used are windows user, if the user is asked to use an operating system other than Windows, linux example the user is able to receive and understand the edge requires a long time to be able to use linux as well not a few who think linux is not practical such as windows, cuba actually differ slightly, this can be caused because the user is already comfortable with windows and linux operating systems enngan study.
Thus the relationship of human and computer interaction with the science of psychology deals with how the user (users) can receive, perceive, learn, reason, remember and think about the information that debirikan by the computer system itself.