There are two slashes on the keyboard, one is a backslash and the other is a forward slash; When using English input method, the backslash above the Enter key can only be typed by clicking; The forward slash is to the left of the right shift key, and can only be entered in English input method. Press shift to switch between Chinese and English input methods.

application area

information management

Information management is a computer technology based on database management system, which helps managers improve their decision-making level and business strategy. Information processing includes a series of work such as data collection, storage, processing, classification, collation, retrieval and release. Information processing has become the main task of modern computers.

Is the foundation of modern management. According to statistics, more than 80% of computers are mainly used for information management, and information management has become the dominant direction of computer application. Information management has been widely used in office automation, computer-aided management and decision-making of enterprises and institutions, information retrieval, library, film and television animation design, computerized accounting and other industries.

Scientific calculation is the earliest application field of computer, which refers to the use of computers to complete numerical calculation problems in scientific research and engineering technology. In the work of modern science and technology, the tasks of scientific calculation are numerous and complicated.

Using the computer's high computing speed, large storage capacity and continuous computing power, we can solve all kinds of scientific computing problems that human beings can't complete. Such as engineering design, earthquake prediction, weather forecast, rocket launch, etc. All these require a huge and complicated calculation by a computer.

process control

The process of control is to collect and analyze data in real time by computer, and adjust or control the controlled object automatically and quickly according to the optimal value. Using computer to control the process can not only greatly improve the automation level of control, but also improve the timeliness and accuracy of control, thus improving working conditions and increasing output and qualified rate.

Therefore, computer process control has been widely used in machinery, metallurgy, petroleum, chemical industry, electric power and other departments.