(01) Power:
Power is the most important part of the computer, equivalent to the heart of the human body, to all the parts of the delivery of "blood", is the computer parts of the normal work of the basic guarantee.
Without the "power", all the other hardware can't play a single role.
Many failures are often caused by the power supply, so the computer is equipped with a sufficient power, precision work, high quality power supply is the premise of the normal operation of the microcomputer.
(02) CPU:
is the core of the computer hardware system, is the abbreviation of Central Processing Unit, translated as the central processing unit.
It is a microprocessor that uses a chip made from a large-scale integrated circuit process with operator and controller functions.
The microprocessor plays the most important role in the microcomputer is the microcomputer's "brain", "Command", the nerve center, constitutes the control center of the entire system, the components of the unified coordination and control.
The CPU is mounted on the motherboard, but it is pressed with a large heat sink and a special fan, so it is usually invisible.
(03) Motherboard
The motherboard is one of the most important parts of the computer, is the basis of the work of the entire computer, can also be said to be the main body of the microcomputer.
Perhaps we can make this analogy: the motherboard is like a missing body, must be "heart" power supply connected, it can blood flow, the "brain" CPU into the skull, it can think and command, the main chassis all the important hardware! All the important hardware of the motherboard, like all parts of the human organs, should be directly inserted into the motherboard or connected to the motherboard to play a role.
The hardware directly inserted on the motherboard: CPU, memory sticks, graphics cards, sound cards, network cards, and so on.
Hardware directly connected to the motherboard: chassis power supply, hard disk, CD-ROM drive, floppy drive, and peripherals such as keyboard, mouse, and so on.
The monitor is connected to the motherboard through the graphics card.
As a result of increased integration of microcomputers, designers can integrate graphics cards, sound cards, network cards, etc. into the motherboard, and if integrated graphics cards are used, the monitor is directly connected to the motherboard.
(04) Memory Stick
It is a storage component on the motherboard.
In a computer, the CPU communicates directly with the memory, which is used to store data and hold data and programs that are currently in use (i.e., being executed).
Its physical essence is one or more sets of integrated circuits with data input and output and data storage capabilities.
Memory is only used to temporarily store programs and data, which are lost when the power is turned off or a power failure occurs.
It should be noted that external memory usually refers to magnetic media or optical disks, hardware like hard disks, floppy disks, tapes, CDs, etc., which hold information for a long period of time and do not depend on electricity to hold information.
(05) Hard Disk
The hard disk is the most important external memory of a computer, it is fast and large in capacity compared to other recording media, making it the most important storage device in a computer.
(06) Graphics card
Graphics card is the full name of the display adapter, now the graphics card are 3D graphics acceleration card, which is the interface card connecting the host computer and the monitor.
The role of the graphics card is to convert the output information from the host computer into information such as characters, graphics, and colors, and transmit it to the monitor for display.
(07) Sound card
It is one of the main components of a multimedia computer and contains the hardware needed to record and playback sound.
(08) Network card
A network interface card, also known as a network adapter, is simply called a network card.
Network cards are used to realize the physical connection between networked computers and network cables, providing a physical channel for computers to communicate with each other, and through which high-speed data transfers take place.
The above three cards can be distinguished quite simply by the type of jacks they have: a network card with a network cable jack, a sound card with jacks for headphones, speakers, and a microphone, and a graphics card, generally with a heatsink, with a monitor port.
(09) floppy drive and floppy disk
The floppy disk drive is an indispensable part of the computer, when necessary, it can start the computer for us, but also to use it to transfer and backup some relatively small files.
Floppy disks are small, error-prone and unreliable, so ordinary floppy drives are slow to read disks.
(10) Optical drive
Optical disk drive, is a combination of optical, mechanical and electronic technology.
Different types of optical drives serve different purposes, and in essence, all optical drives have the ability to read external data (CD-ROMs), only in different formats and with different additional features.
Currently, optical drives can be categorized as CD-ROM drives, DVD-ROM drives (DVD-ROM), Compaq (COMBO), and burners.
(11) Keyboard
Keyboard is the most commonly used and the main input device, through the keyboard, the letters of the alphabet, numbers, punctuation marks, etc., can be entered into the computer, so as to send commands to the computer, input data and so on.
(12) Mouse
The standard name of the mouse should be "Mouse", the English name "Mouse", the use of the mouse is in order to make the operation of the computer easier, instead of the keyboard cumbersome instructions.
The mouse can be divided into mechanical mouse and photoelectric mouse according to its working principle.
(13) Monitor
The monitor is the basic output device in a computer and is the window through which a person can talk to the computer.
(14) Speaker
Speaker refers to a device that transforms audio signals into sound. In layman's terms, it means that the speaker host box or subwoofer box with its own power amplifier, the audio signal amplification process by the speaker itself to play back the sound.
(15) microphone
Microphone, the scientific name for microphone, translated from Microphone.
The microphone is an energy conversion device that converts sound signals into electrical signals, microphones are also known as microphones, microphones, microphones.