In this world development is considered the most important factor because human beings tend to invent and create new things so that they can compete with each other in their field of work. Furthermore, people who choose the field that is relevant to computer equipment in their daily life also think the same and develop the improvement of computer from time to time until computer technology reaches the development that we did not imagine before. When we think of modern society, the first thing that comes to our mind is computer technology, so we cannot deny that the importance of computer development is very important for the growth of modern society and business economy of the country. In most situations people tend to think and say that many jobs could not be done and would be impossible without the presence of computers and that things would not be as easy as we are doing now. According to the dictionary definition, a computer is defined as an electronic device capable of storing an enormous amount of data and processing the stored data, typically in binary form, according to the instructions given to it in a variable type program. In world history, there is a drastic increase in the development of the computer from the 1st to the 5th century. During the first century era, and the recorded year is 1946, the first computer ever made by mankind is called ENIAC (Electronic Numerical Integrator and Calculator) and was designed by Dr. John Nouchly and J.P.Eckert who carried out the their research and studies at the University of Pennsylvania, United States. The first ENIAC computer was made up of 18,000 vacuum tubes, 70,000 resistors and 5 million solder joints, a mediocre machine with... half of paper... the doctor minimizes the workload and the doctor can perform operations without no failure because it is very precise and accurate. As the development of computer technology has grown rapidly in an invisible way, the computer has made human's life easier than before. It is not surprising that in the future people will not go to work and control everything from home, which is feasible today. Users should always be aware to use advanced computer technology appropriately so that everyone can benefit from it because if users tend to use it in the wrong way it may harm other people's privacy and wealth. Computer development will not stop and new things will always introduce new things into the cyber age, so if we don't want to leave behind we should always adopt what changes around us .