(computer) as we all know, computer is a magic machine. It comes in a variety of types. Most computers now have a memory processor that can store and retrieve information at any time.
The oldest computer is the abacus. It has been used for a long time in China. The first modern computers were very large and expensive, but now scientists are making smaller and cheaper computers that are easier to use and work faster and faster.
Now computers can be used in many ways. They can do many kinds of jobs. They can be used for business and scientific research.
In some large factories, today, it is more and more popular for us to play games at home with computers.
(computer) with the development of science and technology, computers have brought many changes to our world. The application of computers in various fields of human activities is also increasing year by year. Computer plays a great role in scientific research and engineering design.
The computer can complete the calculation which is too complicated for the computer at a very high speed. The computer can run automatically at a high speed. It can not only collect data, but also store data at the fastest speed, and input it at any time when necessary.
However, computers can't replace us, even if computers are taking over programs whose tasks were once performed by our own brains. They are just machines, and they will never replace humans.
The computer and our llife computer have become one of the most important inventions in the 20th century. It has become smaller and lighter, so it is easy to carry. We can find the same information more easily from the Internet.
We don't have to find it in books. We can receive letters from the Internet. We don't use the post office.
We all know that computers are good, but will paper be replaced by computers? I don't think Yao's poster will be replaced by a two meter high computer. Besides, we need computers, and we have to cheer for this invention.