What is the main working principle of a computer?

The main working principle of the computer is to store programs and program control. The instruction sequence and raw data that control how the computer operates must be transferred to the computer memory through the input device in advance; each instruction clearly stipulates the computer Which address to fetch the data from, what operation to perform, and then what address to send to, etc.

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

The main working principle of a computer is stored programs and program control.

The basic principles of computers are mainly divided into stored programs and program control. The sequence of instructions (called programs) and raw data that control how the computer operates must be transferred to the computer memory through input devices in advance. Each instruction clearly stipulates which address the computer will fetch from, what operation it will perform, and then what address it will send to.

When the computer is running, it first retrieves the first instruction from the memory, decodes it through the controller, and retrieves the data from the memory according to the instructions' requirements to perform specified calculations and logical operations, and then Send the result to the memory according to the address. Next, take out the second instruction and complete the specified operation under the command of the controller. Continue accordingly. Until a stop command is encountered. Programs are accessed in the same way as data. According to the order of programming, instructions are taken out step by step and automatically complete the operations specified by the instructions. This is the most basic working principle of the computer. This principle was originally proposed by the American Hungarian mathematician von Neumann. It was proposed in 1945, so it is called the von Neumann principle. The working principle of the von Neumann architecture computer can be summarized in eight words: stored program, program control.

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