Modules and Cards of CPU

The central processing unit, referred to as CPU, as the computing and control core of the computer system, is the final execution unit for information processing and program operation. Since the CPU was produced, it has made great progress in logic structure, operating efficiency and function extension.

CPU can be logically divided into three modules, which are the control unit, the operation unit and the storage unit. These three parts are connected by the CPU internal bus.

The modules of a CPU (Central Processing Unit) typically include the following aspects:

Control Unit (CU): Controls the coordination and working rhythm of various modules inside the CPU, and specifies the operation sequence according to program requirements.

Arithmetic Logic Unit (ALU): Responsible for executing all mathematical and logic operations, such as basic operations like addition, subtraction, multiplication, and division, as well as complex operations like comparison, bit shifting, and logical operations.

Registers: Used to temporarily store data and instructions, as well as for quick access and processing.

Cache: Stores the most recently used data and instructions to improve CPU access speed.

Bus: Connects communication lines between the CPU and other components, used for data and instruction transmission.

These modules work together to complete data processing and control tasks in a computer system.

CPU cards and modules are often used to expand the memory, speed, bandwidth, or embedded applications of an existing computer system. The CPU card connects to the other cards placed into the backplane via a computer bus and houses the PC functionality. CPU cards and modules may also be called expansion cards or expansion boards, and offer a variety of embedded applications from modems and wireless networking to graphics and video controllers to RAID controllers.