Science has achieved great progress since the beginning of the 20th century. To me, the most important scientific achievement is the invention of the computer.
Although it is small, a computer can do the work of thousands of people. It can give us valuable information in every field very quickly and precisely. It helps medical doctors in diagnoses, scientists in researches, businessmen in management and students in studies. It even guides airplanes in their flights and satellites in their orbits. Nowadays, nearly all modern machines in firms and factories are controlled by computers. In advances countries, intelligent robots guided by micro-computers are doing the work for men, especially in industries.
Since the invention of the computer the world’s economy has developed very quickly and human life has become better and better. We cannot imagine living in this world without the computer.