Introduction

Computers are vitally everywhere in our modern world. Understanding and efficiently using computers is no longer a luxury, but is a necessity. Computers are not mysterious "black boxes" designed by a "scientists", but an orderly arranged machines based on electrical signals and yes/no (on/off) type logic. Computers are constantly evolving as their electronics becomes more sophisticated and the needs of the consumer change. In the fast changing world of computers it is necessary to keep pace with constantly changing technology.

 

It is important to understand that computers are not machines that naturally do things. They are set up to have predictable responses to specific inputs. Computers do not intrinsically "know" anything about math, or science, or business or any other topic. It takes the human operator to truly interpret the results of the information that is outputted based on the data that is inputted. The true value of the computer is apparent when there is a very specific, pre-defined set of operations or tasks that need to be done quickly and repetitively. Any problem a computer can solve must first be cast into a mathematical model that corresponds to the type of logic the computer uses. Sometimes this modeling process is more obvious than others, but it is always done.