What are the two types of computer systems?

Computer systems are divided into hardware systems and software systems. The hardware system is an organic combination of various physical components composed of electrical, magnetic, optical, mechanical and other principles. It is the entity on which the system relies. Software systems are various programs and files that are used to direct the entire system to work according to specified requirements.

#Computer system refers to the computer hardware, software and network system used for database management. Database systems require 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 devices. In addition, the system should have strong network capabilities.

Computer system consists of hardware (sub)system and software (sub)system. The former is an organic combination of various physical components composed of electricity, magnetism, light, machinery and other principles, and is the entity on which the system relies. The latter are various programs and files used to direct the entire system to work according to specified requirements.

Since the advent of the first electronic computer in 1946, computer technology has made amazing progress in components, hardware system structures, software systems, applications, etc. Modern computer systems range from microcomputers and personal computers. They have various forms and characteristics, ranging from supercomputers and their networks. They have been widely used in scientific computing, transaction processing and process control. They have increasingly penetrated into various fields of society and have a profound impact on the progress of society.

Electronic computers are divided into two categories: digital and analog. Generally speaking, computers refer to digital computers, and the data processed by them are represented by discrete digital quantities. The data processed by analog computers are represented by continuous analog quantities. Compared with digital machines, analog machines are fast and have simple interfaces with physical devices, but they have low accuracy, difficulty in use, poor stability and reliability, and are expensive. Therefore, simulators have been phased out and are only used in situations that require fast response but low accuracy. A hybrid computer formed by cleverly combining the advantages of the two still has a certain degree of vitality.

Features:

The characteristics of the computer system are that it can carry out accurate and fast calculations and judgments, has good versatility, is easy to use, and can be connected network.

①Calculation: Almost all complex calculations can be realized by computers through arithmetic operations and logical operations.

②Judgment: Computers have the ability to distinguish different situations and choose different processes, so they can be used in management, control, confrontation, decision-making, reasoning and other fields.

③Storage: Computers can store huge amounts of information.

④Accurate: As long as the word length is sufficient, the calculation accuracy is theoretically not limited.

⑤Fast: The time required for a computer operation has been as small as nanoseconds.

⑥General: Computers are programmable, and different programs can implement different applications.

⑦Easy to use: Rich high-performance software and intelligent human-machine interface greatly facilitate use.

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

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