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Editor to share with you what are the most important features of computer work, I believe that most people do not know much about it, so share this article for your reference, I hope you will learn a lot after reading this article. Let's learn about it!

The most important feature of computer work is the storage program and automatic control. Its basic principle is that when the computer is running, the first instruction is taken out of the memory first, and then the data is taken from the memory for the specified operation and logic operation according to the requirements of the instruction, and then the results are sent to the memory according to the address.

The most important features of computer work are stored programs and automatic control.

In 1946, the famous American Hungarian mathematician von Neumann put forward and demonstrated the basic idea of computer architecture, in which the core content can be summarized as "storage program" and "automatic control". Therefore, the main working features of computers are stored programs and automatic control.

The working principle of computer

The basic principle of computer is mainly divided into storage program and program control. In advance, the instruction sequence (called program) that controls how the computer operates and the original data are transmitted to the computer memory through the input device. Each instruction clearly specifies the steps such as the address from which the computer is fetched, what to do, and then to which address to send.

Basic principles

When the computer is running, the first instruction is extracted from the memory, and then the data is taken out of the memory for the specified operation and logic operation according to the requirements of the instruction through the decoding of the controller, and then the results are sent to memory according to the address. Next, the second instruction is taken out and the required operation is completed under the command of the controller. Go ahead according to this. Until the stop order is encountered. Programs access like data, take out instructions step by step according to the order of programming, and automatically complete the operations specified by instructions is the most basic working principle of the computer, which was originally developed by Feng, an American Hungarian mathematician. Neumann proposed it in 1945, so it is called Feng. Neumann principle, the working principle of von Neumann architecture computer can be summarized into eight words: storage program, program control.

Stored program-compiles the steps of solving the problem into a program (usually made up of several instructions) and stores the program in the computer's memory (refers to main memory or memory)

Program control-A controller that reads instructions from the main memory of the computer and sends them to the computer. According to the functions of the current instructions, the controller controls the whole machine to perform the operations specified by the instructions and complete the functions of the instructions. Repeat this operation until the instruction in the program has been executed.

The characteristics of von Neumann architecture computers are:

1) use a single processing unit to complete the work of calculation, storage and communication.

2) the memory cell is a linear organization with fixed length.

3) the unit of the storage space is directly addressed.

4) using low-level machine language, instructions complete simple operations through opcodes.

5) centralized sequential control of the calculation.

6) the computer hardware system is composed of five parts: arithmetic unit, memory, controller, input device and output device, and their basic functions are defined.

7) data and instructions are represented in binary form.

8) when executing the program and processing the data, the program and data must be loaded into the main memory from the external memory, so that the computer can automatically adjust to fetch instructions from the memory and execute them.

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