The Book of the World is digital

The Book of the World is digital

In the first moment, in my impression, software engineering is mainly about the use of computers. The research field of computer science is divided into: computer sciences, Computer engineering, software engineering, information system and it. In my opinion, nowadays, computers are for everyone to master.

"The world is digital" because it seems to be very dull, so there is no impulse to want to see, but you just have to seriously look down you will find this book is still very attractive, this book comprehensively tells the history of the computer, can more fully understand the professional knowledge, for our study is very helpful.

In 1946, von Neumann invented ENIAC, the world's first electronic computer, which produced a clear five major parts of computers: arithmetic, storage, controller, input devices and output devices, and the use of binary operations instead of the original decimal operation, the future of computer development has a huge impact.

The development of the computer has been divided into four periods, namely, electron tubes, transistors, integrated circuits, large scale integrated circuits and VLSI. Four revolutions not only the computer technology is more and more advanced.

With the rapid development of science and technology, today's social science and technology more developed, the use of computers has been very common, coupled with the further development of microcomputers, the simplification of operation and application of computers is more common. The sharing of resources, communication, and the most primitive features of these two computers are first and foremost used in daily life. In ordinary daily life, the computer plays a more and more important role. Almost every family has a computer. The use of computers is extensive, and convenient and fast, popular with people. The advantages of computers are many, for example, we can collect information conveniently. When we want to do a project, but the lack of information, as long as we browse the Internet, we can immediately find a lot of information related to the project, very convenient.

In recent years, computer-based network technology has become more and more widely used. But in the process of use, network security, especially from the Internet, a large number of viruses in the computer network spread spread, to the computer network system security caused significant security risks.

Common infection virus characteristics: The computer boot than usual slow, abnormal operation, the regular occurrence of abnormal information; access to the device for a long time does not respond or abnormal, such as the printer can not be online, garbled, etc. disk space suddenly small, or do not recognize the disk device; program and data mysteriously lost, file name is not recognized ; Display inexplicable information and abnormal display; often crashes, restarts, does not start normally, executable file size changes and unknown source hidden files appear. When these problems arise, you should kill the virus, to do a good habit of cleaning every day, to avoid stealing information.

The road to go is still long, learning computer needs toughness, more need for innovation, the need for passion, the need for deep learning theoretical knowledge, the courage to accept the challenge of new technology!

The Book of the World is digital