What are the four major parts of a computer?

The four major components of a computer are: 1. The CPU, the central processing unit, is the core part of the computer. Every work completed by the computer is completed under its command and intervention; 2. Motherboard, usually a rectangular circuit board, on which is installed the main circuit system that makes up the computer; 3. Hard drive, which is a non-volatile (non-volatile) storage device based on hard rotating disks on the computer; 4. Memory is an electronic device made using semiconductor technology and used to store data.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Computer, commonly known as computer, is a modern electronic computing machine used for high-speed calculations. It can perform numerical calculations, logical calculations, and also has storage and memory functions. It is a modern intelligent electronic device that can run according to the program and process massive data automatically and at high speed.

The four major components of a computer are the CPU, motherboard, hard drive and memory.

1. The CPU is the central processing unit and the core part of the computer. Every work completed by the computer is completed under its command and intervention. The model of the CPU configured in a computer actually represents the basic performance level of the computer. There are two main popular brands on the market today: Intel and AMD.

2. The motherboard is generally a rectangular circuit board, on which are installed the main circuit systems that make up the computer. Generally, there are BIOS chips, I/O control chips, key and panel control switch interfaces, indicator light connectors, expansion Components such as DC power supply connectors for slots, motherboards and plug-in cards. The motherboard adopts an open structure. Most motherboards have 6-15 expansion slots for the control cards (adapters) of PC peripherals. By replacing these plug-in cards, the corresponding subsystems of the microcomputer can be partially upgraded, giving manufacturers and users greater flexibility in configuring models.

3. The hard disk is a non-volatile (non-volatile) storage device based on hard rotating platters on the computer. It stores and retrieves digital data on a flat magnetic surface. Information is written to the disk by the electromagnetic current by changing the polarity of the writing head very close to the magnetic surface. Because of its small size, large capacity, fast speed and ease of use, it has become a standard configuration of PCs. It uses aluminum alloy and other metals as the disk base, and the disk surface is coated with a magnetic recording layer. The magnetic layer can be made by spin coating process. At this time, the magnetic powder exists in discontinuous particles; it can also be made with electroplating, chemical plating, sputtering, etc. Methods to prepare continuous film disks.

4. Memory is an electronic device made of semiconductor technology and is used to store data. The data of electronic circuits is stored in binary form, and each storage unit of the memory is called a memory cell. There are many types of memory, which can be divided into main memory and auxiliary memory according to their uses. Main memory is also called internal memory (referred to as memory).

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