First, they are essentially different.

The human brain is the highest part of the central nervous system and the main part of the brain. Divided into left and right cerebral hemispheres, the corpus callosum composed of nerve fibers is connected. It is the product of the evolution of nature and is biological in nature.

Computers are composed of hardware systems and software systems, which can be divided into five categories: supercomputers, industrial control computers, network computers, personal computers and embedded computers. More advanced computers include biological computers, photonic computers and quantum computers. Computers are the product of human brain design, not biological.

Second, they have different characteristics.

1, the human brain can naturally produce psychological processes such as thoughts, feelings and thinking. At the same time, it has a personality tendency (personality, etc.). The wisdom and thoughts produced by the human brain are infinite.

2. Computers can't do without preset programs, and things that are not in the programs will not be consciously generated. Without programs, computers are just electronic components. Not to mention more advanced functions such as self-study, observation, understanding, emotion and personality.

Third, the difference in operation speed between the two.

Computers can perform various arithmetic operations at high speed and accurately. At present, the operation speed of computer system has reached trillions of times per second, and the microcomputer can reach more than 100 million times per second, which can solve a large number of complex scientific calculation problems.

For example, the calculation of satellite orbit, the calculation of large dams and the calculation of 24-hour weather all take years or even decades, but in modern society, it only takes a few minutes to complete with a computer, which is much faster than the calculation speed of the human brain.