1.CPU: as the computing and control core of computer system, the central processing unit (CPU) is the final execution unit of information processing and program operation.
2.Memory: it is one of the important components of the computer, also known as memory and main memory. It is used to temporarily store the operation data in the CPU and the data exchanged with external memory such as hard disk. It is a bridge between external memory and CPU. All programs in the computer run in memory. The strength of memory performance affects the overall performance of the computer. As long as the computer starts running, the operating system will transfer the data to be calculated from the memory to the CPU for operation. When the operation is completed, the CPU will transmit the results.
3.Motherboard: also known as mainboard, system board, or motherboard, it is one of the most basic and important components of a computer. The main board is generally a rectangular circuit board, on which the main circuit system constituting the computer is installed, generally including BIOS chip, I / O control chip, keyboard and panel control switch interface, indicator connector, expansion slot, DC power supply connector of the main board and card, etc.
Function of main board:
1. Connect electrical appliances with different voltages and provide corresponding power supply.
2. Connect electrical appliances with different functions to transmit information to each other.
3. Receive external data and process it to other equipment.
4. Centralize the data processed by internal equipment and transfer it to the outside world.
5. Balance the data, energy, speed, temperature, current, etc. in the computer.
4.Solid state hard disk: a hard disk made of solid-state electronic storage chip array, which is composed of control unit and storage unit (flash chip and DRAM chip). The main function is to store documents.
The difference between PCIe and NVMe is that PCIe (peripheral component interconnect express) is an interface type protocol and nvme (non volatile memory express) is a transmission protocol.
It is used to receive the wireless signal sent by the base station and provide a mobile network for the host.
5.It is used to receive the wireless signal sent by the base station and provide a mobile network for the host.
It has built-in rich network protocols, integrates multiple industry standard interfaces, and supports a variety of drivers and software functions (applicable to USB drivers under Windows 7 / 8 / 8.1/10, Linux, Android and other operating systems).