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What is a system? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

The word "system" comes from the transliteration of English system, that is, several parts are interrelated and interact with each other to form a whole with certain functions.

Qian Xuesen, a famous Chinese scholar, believes that the system is an organic whole with specific functions, which is composed of several components that interact and depend on each other, and this organic whole is part of the larger system to which it belongs.

In the theory of digital signal processing, the entity that can process and transform digital signal is called system. Because the digital signal processing system processes the signal at a specified time or time sequence, the system is regarded as discrete time, and can also be described by time-based language, table, formula and waveform.

In an abstract sense, both systems and signals can be regarded as sequences. However, the system is a mechanism for processing signals, which is different from signals. People study the system, design the system, and use the system to process signals and serve human beings. In addition to the above four description methods, there are symbols, unit impulse response, difference equations and graphics to describe the system.

Expand knowledge:

Computer system refers to the computer hardware and software and network system used for database management. Database systems need large-capacity main memory to store and run operating systems, database management system programs, applications, databases, directories, system buffers, etc., while auxiliary storage requires large-capacity direct access equipment. In addition, the system should have strong network function.

The computer system is characterized by accurate and fast calculation and judgment, good versatility, easy to use, and can be connected into a network.

① computing: almost all complex calculations can be realized by computers through arithmetic and logic operations.

② judgment: the computer has the ability to distinguish different situations and choose different treatments, so it can be used in management, control, confrontation, decision-making, reasoning and other fields.

③ storage: computers can store huge amounts of information.

④ accuracy: as long as the word length is long enough, the calculation accuracy is theoretically unlimited.

⑤ Fast: the time required for a single operation of a computer has been reduced to nanoseconds.

⑥ universal: computers are programmable, and different programs can achieve different applications.

⑦ easy to use: rich high-performance software and intelligent man-machine interface, greatly convenient to use.

⑧ networking: multiple computer systems can transcend geographical boundaries and share remote information and software resources with the help of communication networks.

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