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.