What does a computer system consist of?

Computer system consists of hardware and software. Computer hardware refers to the physical devices in a computer system, including central processing units, internal memory, input/output devices, and storage. Computer software refers to the programs and related data required for computer operation. The software part can be divided into two categories: system software and application software.

The computer system consists of two parts: hardware and software.

1. Hardware part

Computer hardware refers to the physical devices in the computer system, including central processing unit, internal memory, input/output devices and memory and other parts.

1. Central processing unit (CPU): The central processing unit is the core component of the computer and is responsible for executing instructions and processing data. It includes components such as arithmetic logic units, control units and registers.

2. Internal memory: Internal memory is the temporary memory of the computer, used to store programs and data currently being used by the CPU. Internal memory is divided into two types: one is random access memory (RAM), which allows data to be read/written in any order; the other is read-only memory (ROM), which can only read data and cannot write data. .

3. Input/output devices: Input/output devices are the interface for information exchange between the computer and the outside world. Common input devices include keyboards, mice, scanners, cameras, etc. Common output devices include monitors, printers, speakers, etc.

4. Memory: Memory is used to permanently store data and programs. It is divided into two types: internal memory and external memory. Internal memory includes internal memory and cache memory, while external memory includes hard drives, solid-state drives, optical disks, tapes, etc.

2. Software part

Computer software refers to the programs and related data required for computer operation. The software part can be divided into two categories: system software and application software.

1. System software: System software is the basic software of the computer. It is responsible for managing the hardware resources of the computer and providing an environment for application running. Common system software includes operating systems, device drivers, database management systems, etc.

2. Application software: Application software is software developed to meet the needs of specific fields, such as office software, image processing software, etc. Application software is software directly oriented to users, which can complete specific tasks or provide specific services.

In general, a computer system consists of two parts: hardware and software. They cooperate with each other to complete the computer's running tasks. Hardware is the material basis of a computer system, providing computing and storage capabilities; software directs the work of the hardware, enabling the computer to complete various tasks. When choosing and using a computer, it is very important to understand its system components and principles. This can help us better use and maintain the computer and avoid some common problems.

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