How is the instruction in the memory sent to the CPU for processing?

If the instructions in the memory are sent to the CPU for processing, it is completed through the "data bus". The bus is a common communication trunk that transmits information between various functional components of the computer; the data bus transmits data that needs to be processed or stored back and forth between the CPU and RAM.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

If the instructions in the memory are sent to the CPU for processing, it is completed through the "data bus".

Bus (Bus) is a public communication trunk for transmitting information between various functional components of the computer. It is a transmission harness composed of wires. According to the type of information transmitted by the computer, the bus of the computer can be divided into They are the data bus, address bus and control bus, which are used to transmit data, data address and control signals respectively. The bus is an internal structure. It is a common channel for CPU, memory, input and output devices to transmit information. The various components of the host are connected through the bus, and the external devices are connected to the bus through corresponding interface circuits, thus forming computer hardware. system. In a computer system, the common channel for transmitting information between various components is called a bus. Microcomputers use a bus structure to connect various functional components.

• Data Bus: Transfers data that needs to be processed or stored back and forth between the CPU and RAM.

• Address Bus: Used to specify the address of data stored in RAM (Random Access Memory).

• Control Bus: Transmits signals from the microprocessor control unit (Control Unit) to peripheral devices.

Data Bus (DataBus)

Standardizes the sharing of data between homogeneous and heterogeneous systems in a large integrated application system and exchange implementation methods, data exchange standards between systems. It can be used to transfer information between microprocessor and memory, microprocessor and input and output interface. The width of the data bus is an important indicator of computer performance. Microcomputer data buses are mostly 32-bit or 64-bit.

1. Business entity data exchange: Each subsystem has a business entity layer in the architecture layer. The data exchange mechanism establishes a layer in the business entity layer that is transparent to all application systems. Subsystems, regardless of the specific technical solutions implemented, can share and interact through the business entity layer. This also establishes a structure that can carry out continuous integration and business expansion between subsystems, thereby achieving an scalable a complete integrated information system.

2. WebService data exchange: It is a Web service standard. Web service provides a solution for sharing and exchanging data between heterogeneous systems. It can also be used to use unified interface standards for data sharing and exchange in product integration. exchange.

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