Human Computer Interface

Updated : 14-09-2017 Published : by :
Computer Science Engineering Seminars

The Human-Computer Interface (HCI) deals with the methods by which computers and their users communicate. It is the process of designing interface software so that computers are pleasant, easy to use.

The Human-Computer Interface (HCI) deals with the methods by which computers and their users communicate. It is the process of designing interface software so that computers are pleasant, easy to use and do what people want them to do. Dealing with HCI requires the study of not only the hardware of the computer, but that of the human side also. Therefore attention must be paid to human psychology and physiology.

This is because to build a better two-way communication, one must know the capabilities and limitation of both sides. This seminar also deals with concepts and guidelines that should be followed in order to produce a good HCI. Specifically dealt with topics include Dialogue Design, Presentation Design, General Input and Output.


The human brain is where all the cognitive functions take place. It is ultimately where a human receives, interprets and stores information. Information can be processed by the sense organs and sent to the brain faster and more precise than the brain can handle. Many models have been developed in order to try and use a computer analogy to brain functions but with mixed success. They are however quite useful because they present to us a model with which we can illustrate capabilities and limitations.

These models suggest that there are two forms of human memory: short term and long term. Each sense appears to have its own short-term memory, which acts like a buffer or staging area for input from the particular sense organ to the brain. Any memory that is not reinforced and moved to long-term memory is forgotten. Short term memory has a capacity of about seven blocks of information but this too seems to be able to be increased with practice and added levels of abstraction and association.


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