What are the components of computer hardware? Briefly describe the role of each part

1) Power supply: power supply is an indispensable power supply equipment in the computer, its role is to convert 220V AC to 5V, 12V, DC used in the computer, its performance is good or bad, directly affects the stability of other equipment, and then affects the stability of the whole machine.

2) Motherboard: The motherboard is a platform for the various parts of the computer to work, which closely connects the various parts of the computer together, and each component transmits data through the motherboard. That is to say, the important "transportation hub" in the computer is on the motherboard, and the stability of its work affects the stability of the whole machine.

3) CPU: CPU (Central Precessing Unit) is the first processor, its function is to perform calculations, logical operations, data processing, rounding, input and output control computer automatically, coordinate to complete various operations. As the core of the whole system, the CPU is also the highest execution unit of the whole system, so the CPU has become the core component that determines the performance of the computer, and many users use it as a standard to judge the grade of the computer.

4) Memory: Memory, also known as internal memory (RAM), belongs to electronic storage devices, it is composed of circuit boards and chips, characterized by small size, fast speed, power can be stored, no power empty, that is, the computer can store data in the memory when it is turned on, and all the data in it will be automatically emptied after shutdown.

5) Hard disk: The hard disk is an external memory, which is made of metal magnetic sheets, and the magnetic sheets have a memory function, so the data stored on the magnetic sheets will not be lost whether they are turned on or paralleled.

6) Sound card: Sound card is an indispensable hardware device for multi-computer computer, its function is that when the command is issued, the sound card converts the sound digital signal in the computer into an analog signal and sends it to the speaker to send sound.

7) Graphics card: The graphics card works with the display to output graphics and text, and its role is to convert the digital signal sent by the CPU into the analog signal recognized by the display, and transmit it to the display for display.

8) Modem: A modem is one of the indispensable devices when accessing the internet through a ** line. Its function is to convert the digital signal processed on the computer into an analog signal transmitted by the first line.

9) Network card: The role of the network card is to act as a bridge between the computer and the network cable, and it is one of the important equipment used to establish the local network.

10) Floppy drive: The floppy drive is used to read data from a floppy disk. Floppy disks are read-write external storage devices.

11) Optical Drive: An optical drive is a device used to read the disc. The disc is a read-only external storage device with a capacity of about 650MB.

It is the most important processor of the computer and the core hardware. It is equivalent to the human brain, the stronger the CPU performance, the smarter the human brain, and the CPU can control all the hardware of the computer. 2.

The motherboard is quite similar to the human skeleton and is the carrier of the computer, and the larger the skeleton, the higher the human figure. 3.The power supply is the human heart, which can provide energy to the various hardware of the computer.

The stronger the heart, the more energy nutrients it has. 4.The hard drive is equivalent to a person's speed, strength and backpack.

The more powerful the hard drive, the faster it works, the more things you move, and the more things you store. 5.The memory is equivalent to the spaciousness of the road, the smoothness of work.

6.Graphics cards and monitors are the equivalent of a person's field of vision, the eye. The stronger the graphics card and display, the farther we see, the clearer, and the more vivid the colors.

7.Sound cards and speakers are the equivalent of a person's throat and ears. The better the sound card, the more attractive the voice.

The better the horn, the clearer and more beautiful the sound we hear. 8.The chassis and heat dissipation are equivalent to the living and working environment of people, such as clothes, armor, houses, and the chassis protect the computer hardware, which is not susceptible to damage, and can also provide a comfortable environment and temperature for the computer.

A computer consists of five logical components: combinators, controllers, memory, input devices, and output devices. Visually, a microcomputer consists of a main chassis and external devices. The main chassis mainly includes CPU, memory, motherboard, hard disk drive, optical drive, various expansion cards, cables, power supplies, etc.; Peripherals include mice, keyboards, and more.

Input devices enable the exchange of information between the user and the computer system, inputting the raw data and the programs that process these numbers into the computer. Input devices are one of the main means of information exchange between users and computer systems.

Computer hardware is composed of five parts: combinator, controller, memory, input device, and output device.

Combinator: a component controller that processes and calculates information or data: it is used to automate the operation process of the computer itself, that is, to realize the automatic execution memory of the program: it is used to store the program and data.

Input device: A program output device used to input raw data and process such data: A program output device used to output the processing results of a computer.

The basic components of computer hardware: combinators, in-limb controllers, memory, input devices, and output devices. Lida Mountain.

The main functions of combinators are arithmetic and logical operations.

A controller is a part that controls the entire computer and sends control signals to other parts of the computer to make them work in harmony.

The main function of the memory is to store programs and data.

Input and output devices are used for input and output information. The input device is a device that converts programs, data, and instructions into information that a computer can receive.

The components of computer hardware mainly include the peripherals of the computer, such as mice, keyboards, monitors, chassis, headsets, etc.; The inside of the chassis is composed of a motherboard, CPU, hard disk, power supply, optical drive, graphics card, sound card, network card, etc.

External: 1, Chassis:

The chassis generally includes the shell, bracket, various switches on the panel, indicator lights, etc. As a part of the computer accessories, the main role of the chassis is to place and fix the computer accessories, and play a supporting and protective role.

2. Display:

The monitor, also known as the monitor, is one of the most basic output devices of the stuffy computer, and its function is to display various information such as text and charts.

3. Mouse: Mouse is a very common and commonly used computer input device, which can locate the cursor on the current screen, and operate the screen elements of the position of the cursor through the key and scroll wheel device.

4. Keyboard: The keyboard is the most commonly used and main input device of Shen Hood, through which you can input English letters, numbers, punctuation marks, etc. into the computer, so as to issue commands and input data to the computer.

5. Headphones: Headphones, also known as earphones or earpieces, are a pair of conversion units, which accept the telecommunication signals sent by the **** device or receiver, and use the speakers close to the ears to convert them into audible sound waves.

Inside the chassis: 1. Motherboard: The motherboard, also known as the motherboard, is installed in the chassis and is one of the most basic and important components of the microcomputer.

2. CPU: CPU, also known as ** processor, is the computing core and control core of a computer. Its function is mainly to interpret computer instructions and process data in computer software.

3. Hard disk: The hard disk is the most important storage device of the computer, which is composed of the magnetic head, disk, motor, main control chip and other components. Its read and write mode uses semi-random access, and the data in the hard disk can be read in any order.

4. Optical drive: The optical drive is a machine used by the computer to read and write the contents of the CD, and it is also a common component in desktop and notebook portable computers. <>