The concept of stored program was proposed by "V.Neumam", that is, "Von Neumann", who was the first person to propose the concepts of "stored program" and "program control".
The first person to propose the concept of "stored program" was V.Neumam, von Neumann, who was the first to propose "stored program" and "program control" and other concepts.
In 1945, the Hungarian-American scientist J.Von Neumann proposed it as the theoretical basis of modern computers. Modern computers have developed into the fifth generation, but still follow this principle.
The key point of the stored program and program control principle is that the program is input into the computer and stored in the internal memory (storage principle). During operation, the controller fetches the instructions stored in the internal memory in address order ( Access instructions in address order), then analyze the instructions, execute the instruction's function, and when a transfer instruction is encountered, transfer to the transfer address, and then access instructions in address order (program control).
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Technical Features
The computer system is composed of two parts: hardware system and software system . The Von Neumann structure (John von Neumann), that is, the stored program, laid the basic structure of modern computers. Its characteristics are:
1) Use a single processing unit to complete calculation, storage and communication work.
2) The storage unit is a fixed-length linear organization.
3) The units of storage space are directly addressable.
4) Using low-level machine language, instructions complete simple operations through opcodes.
5) Centralized sequence control over calculations.
6) The computer hardware system consists of five major components: arithmetic unit, memory, controller, input device, and output device and stipulates their basic functions.
7) Use binary form to represent data and instructions.
8) When executing programs and processing data, the programs and data must be loaded from the external memory into the main memory, and then the computer can automatically adjust the instructions to be fetched from the memory and executed during operation.
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