Looking back on the past 20th century, we human beings have every reason to take pride in all those great achievements. We have conquered many diseases, launched satellites, and invented mobile phones... However, the advent of computer, together with the internet, is considered the most significant and has caused a thorough revolution in people's lives. The computer is widely used in all phases of society. In industry, business, education, medicine, nearly all walks of life, computers have made their appearance, providing great speed and accuracy for our work. With the development of computers almost every jobs need people who are well up in computer technology. People, who want to find a good job, must learn how to use computers.
When the first computer came into being in 1946, it was proclaimed the beginning of a new era in human history. The marvelous invention coupled with Internet plays a vital role in today's society.
Nowadays, businessmen depend substantially on computers. In the database of the banks, the information of thousands of millions of accounts is stored accurately. The B2B system of the Ford Car Company controlled completely by computers makes it possible for the whole company to coordinate efficiently, thus it keeps the costs to the lowest level. Stock transactions involving large sums of money can be completed safely through internet. We can hardly imagine a business operating without computers.
When it comes to our daily life, computers also demonstrate their advantages. "Distance learning" is becoming increasingly popular, by which teachers and students interact online while sitting before the PC at home. And there's even possibility that it will take the place of the old way of teaching someday in the future.
Besides, we can have easy access to the flowing information when necessary by clicking the mouse only. In the past, however, we have to search for hours in libraries. PC games provide extra...