Introduction For thousands of years, maybe since the beginning of time, people search for better ways to improve the quality of life. And for the past hundred of years, computers eventually took stand in the world. Today, computers are generally used as a productive, educational, communication...

A quote I heard many times when I was in high school and which I now know traces back to Sir Francis Bacon, one of our earliest scientist or philosophers as they were then called, is the statement "Knowledge Is Power." Today, I believe that the fuller, more correct statement is to say, "the applicat...