What is the main composition of the central processing unit cpu?

The central processing unit cpu is mainly composed of an arithmetic unit and a controller; the CPU is one of the main equipment of an electronic computer and a core accessory in the computer. Its function is mainly to interpret computer instructions and process data in computer software; CPU is the core component of the computer that is responsible for reading instructions, decoding instructions and executing instructions.



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CPU is mainly composed of arithmetic unit and controller.

The central processing unit (CPU) is one of the main equipment of an electronic computer and a core accessory in the computer. Its function is mainly to interpret computer instructions and process data in computer software. The CPU is the core component of the computer that is responsible for reading instructions, decoding and executing instructions.

The central processing unit mainly includes two parts, namely the controller and the arithmetic unit, which also includes the high-speed buffer memory and the bus that realizes the data and control between them. The three core components of an electronic computer are the CPU, internal memory, and input/output devices. The functions of the central processing unit are mainly to process instructions, perform operations, control time, and process data.

Expansion information

For CPU, the main indicators that affect its performance are main frequency, CPU bit number and CPU cache instruction set. The so-called CPU frequency refers to the clock frequency, which directly determines the performance of the CPU. Therefore, if the performance of the CPU is to be improved, it is a good way to increase the CPU frequency.

The number of CPU digits refers to the number of floating-point numbers that the processor can calculate at one time. Generally, the higher the number of CPU digits, the faster the CPU performs operations. Now the number of CPU bits is generally 32 or 64 bits.

In the past, computers used by people were 32-bit systems. In recent years, the proportion of 64-bit processors in computers used by people has become more. This is because 64-bit computers have become faster and have improved people Work efficiency.

The cache instruction set of the CPU is stored inside the CPU, which mainly refers to the hard program that can guide and optimize the operation of the CPU. Generally speaking, the cache of a CPU can be divided into a first-level cache, a second-level cache and a third-level cache, and those processors with stronger processing capabilities generally have a larger third-level cache.