Motherboard, also called motherboard and system board, is one of the most basic and important components of a computer.
Motherboards are mostly rectangular circuit boards, on which the main circuit systems of computers are installed. Most of them include BIOS chips, I/O control chips, keyboard and panel control switch interfaces, indicator light connectors, expansion slots, motherboards and plug-in DC power supply connectors.
The function of the motherboard
1. Integrate all the important hardware devices
In order to enable all the hardware devices of the computer to transmit information and communicate with each other, the motherboard provides them with various sockets suitable for them. Therefore, the slots on the motherboard will have CPU, graphics card, sound card, communication card, network card and so on. The motherboard can realize the information exchange and connection between them, and give information feedback to related operations.
2. Provide power for various hardware devices
The components on the motherboard, from the CPU to the hard disk, need power to work, otherwise they are just a bunch of furnishings. And when they are connected to the motherboard, the motherboard can provide them with appropriate power. When the user presses the power-on key of the computer, the power-on circuit and the power supply circuit can replace the electric energy with the electric energy suitable for each device, and make them work normally and respond to the user's instructions in time. In addition, the motherboard of the notebook is also connected to the power supply, which can supplement the power supply of the notebook.
3. Motherboard provides interfaces for various external devices
In addition to various hardware devices inside the computer, various external devices that are often used in daily life also need to be connected through the motherboard to operate the computer. For example, mobile storage devices such as USB flash drives, mobile hard disks, and input devices such as mice, if they want to work, they also need to work through the interface on the computer motherboard.
4. provide clock signals for various devices
the motherboard can provide clock signals for various components and guide them to complete their own work. Clock signals are extremely important digital signals in the computer. They are completely logical components, which require a large number of different clock signals to complete normal work. Therefore, the function of the motherboard here is also obvious.