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This article mainly introduces what is the basic composition of the computer, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, let the editor take you to understand it.

The basic components of a computer include a controller, an arithmetic unit, a memory, an input device and an output device. Among them, the controller is the central nervous system of the whole computer, and its function is to interpret the control information specified by the program, control according to its requirements, schedule programs and data, coordinate the work of various parts of the computer and access memory and peripherals.

Computer composition refers to the logical implementation of the system structure, including the composition and logical design of data flow and control flow in the machine. It is mainly divided into five parts: controller, arithmetic unit, memory, input device, output device.

Hardware components:

Controller (Control): the central nervous system of the whole computer, its function is to interpret the control information specified by the program, control according to its requirements, schedule programs, data, addresses, coordinate the work of various parts of the computer and access memory and peripherals.

Datapath: the function of the arithmetic unit is to perform all kinds of arithmetic and logical operations on the data, that is, to process the data.

Memory (Memory): the function of a memory is to store programs, data, various signals, commands, and other information, and to provide this information when needed.

Input (Input system): the input device is an important part of the computer. The input device and the output device are called external devices, referred to as peripherals. The function of the input device is to input the program, original data, text, characters, control commands or data collected on the spot into the computer. Common input devices are keyboard, mouse, photoelectric input machine, tape drive, disk drive, optical disk drive and so on.

Output (Output system): the output device is an important part of the computer as well as the input device. It outputs the intermediate or final results of the computer, various data symbols and characters in the computer, or various control signals. The commonly used output devices of microcomputers are display terminal CRT, printer, laser printer, plotter, magnetic tape, optical disk machine and so on.

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