This paper briefly describes the composition and working principle of the functional structure of th

The working principle of the CPU is actually very simple, and its internal components mainly include: control unit, logic unit, and storage unit. Instructions are assigned to the logic operation unit by the control unit, and after processing, they are sent to the storage unit to be used by the application.

In order to increase the performance of CPUs, various manufacturers have developed many technologies. For example:

1. Multiple computing units perform operations at the same time.

2. Pipeline function: let the instructions or materials be prepared at the same time.

3. Pre-access function: When the program or data has not yet been executed, it will be obtained in advance and stored in the CPU.

4. Function: The program will execute the path to retrieve the data in advance.

5. Multi-function: add some functions that were previously made up of professional multi-chip to the CPU. For example, Intel's MMX.

**Processor CPU includes arithmetic logic components, register components, and control components. The processor takes instructions from memory or cache memory, places them in instruction registers, and decodes instructions. It decomposes the instruction into a series of micro-operations, and then issues various control commands to execute a series of micro-operations, so as to complete the execution of an instruction.

An instruction is a basic command for a computer that prescribes the type of operation to be performed and the number of operands.

Operational logic components. You can perform fixed-point or floating-point arithmetic operations, shift operations, and logical operations, as well as address operations and conversions.

Register parts. These include general-purpose registers, dedicated registers, and control registers. General-purpose registers can be divided into two types: fixed-point and floating-point, which are used to store the register operands and operation results in the instruction. General-purpose registers are an important part of a processor.

Most instructions need access to general-purpose registers.

Control parts. It is mainly responsible for decoding instructions and sending control signals for each operation to be performed to complete each instruction. There are two kinds of structures: one is the microprogram control mode with micromemory as the core; One is the control mode based on the logical hard wiring structure.

How it works: The CPU is the computing core and control core of a computer. The CPU is responsible for reading the instructions, decoding the instructions, and executing the core components of the instructions.

CPU functions are mainly to interpret computer instructions as well as process data in computer software. The operations of all software layers in a computer system will eventually be mapped to the operations of the CPU through the instruction set.

The internal structure of the CPU can be roughly divided into the control unit, the arithmetic logic unit, and the storage unit. According to the word length of the information it processes, it can be divided into: eight-bit microprocessor, sixteen-bit microprocessor, thirty-two-bit microprocessor and sixty-four-bit microprocessor and so on.

The processor (central processing unit) is also known as the processing unit, and we also often use the CPU to represent it.

The CPU mainly works arithmetic

Logical operations, interpreting every instruction in the computer to control the operation of the computer.

In the current CPU manufacturing technology, cache memory (a place where the computer can store the main computing data first).

It is also placed in the CPU, which makes the CPU run a lot faster.

Like other chip products, the CPU itself is a chip, and the manufacturing process is much the same as that of a chip.

It's just that the CPU is an integrated chip, which contains more than one million transistors (that is, resistive circuits, which can be used to carry out built-in instructions in the computer), and in these transistors, a proprietary instruction set (the basic program that commands the computer to work) is stored in advance to perform the general work required by the computer, so the CPU is also called the heart or brain of the computer.

CPUs have always been a high-level topic, and you probably don't know anything. I used to be confused about the CPU, but then I consulted a lot of gods, and I roughly figured it out. Here, according to my own understanding, try to tear the veil of CPU mystery in the most popular language, so that more people can understand CPU

1. CPU is a super-large-scale integrated circuit, which is the computing core and control core of a computer. Its function is mainly to interpret computer instructions as well as process data in computer software;

2. The CPU is composed of two parts: combinator and controller, which is the core part of the microcomputer and is responsible for the computing and control functions of the computer;

3. The processor mainly includes the combinator and the cache memory and the data, control and state bus that realizes the connection between them, and it is called the three core components of the electronic computer together with the internal memory and the input and output equipment.

The CPU is composed of two parts: a combinator and a controller, which is the core part of the microcomputer and is responsible for the computing and control functions of the computer.

Answer]: The CPU is mainly composed of two parts: the combinator and the controller.

Combinator: Perform arithmetic and logical operations on binary numbers.

Controller: A component that connects parts of a computer and automates the execution of programs. The function is to take out the instructions from the memory at one time, generate control signals, and send commands to other ministries to command the entire calculation process.

1. The three components of the CPU.

Combinators, controllers, memory.

2. Functions. 1. Combinator:

When the computer is running, the operation of the combinator and the kind of operation are determined by the controller. The combinator processes data from memory; The processed result data is usually sent back to memory or temporarily stored in a combinator. Together with ControlUnit, it forms the core part of the CPU.

2. Controller:

The control unit is responsible for the flow management of the program. The control unit is the command and control center of the entire CPU, which is composed of three components: the command register IR, the command decoder ID and the operation controller OC, which is extremely important for coordinating the orderly work of the entire computer.

3. Memory:

A computer's memory can be divided into internal memory and external memory. Sakurawa's internal memory is frequently used by computers during program execution and is directly accessible during an instruction cycle.

3. Relationship with memory.

When a program or operator issues instructions to the CPU, these instructions and data are temporarily stored in memory and transmitted to the CPU when the CPU is idle, and the CPU processes and outputs the results to the output device, which is a monitor, printer, etc.

This data is also stored in memory until it is not displayed, and if the memory is insufficient, the system automatically divides a portion of the space from the hard disk as virtual memory.

However, the speed of writing and reading is far, far from the physical memory, so when the memory is low, you will feel that the machine is very slow to respond, and the hard disk is ringing all the time.

Controller, arithmetic bai, send.

Memory-combinator negative du

Responsibilities for the value of floating-point and other operations, registers responsible for will be placed.

DAO management is saved, and it can be called by the operation calculator at any time. The subordinate controller is responsible for the coordination of combinators, registers, etc.

The data that needs to be calculated is placed in memory, and the controller will call the data to be processed into the register in a certain order, and then arrange the calculator to process the data.

The data required by the CPU to perform operations is read from memory, not from the hard disk.

The CPU includes arithmetic logic components, register components, and control components.

1. Logical components.

You can perform fixed-point or floating-point arithmetic operations, shift operations, and logic operations, as well as address operations and transformations.

2. Registers.

Register components, including registers, special registers, and control registers. General-purpose registers can be divided into two types: fixed-point and floating-point, which are used to store the number of register operations and intermediate (or final) operation results temporarily stored during instruction execution.

3. Control components.

It is responsible for decoding instructions and sending control signals for each operation to be performed to complete each instruction.

CPU is an abbreviation for Central Processing Unit, which consists of combinators and controllers.

Its internal structure can be summarized into three parts: control unit, logic unit and storage unit.