The thinking and system of introduction to Computer Science (2)

1. With regard to the realization of the binary number calculation part, the design and implementation of a simplest computing part simply implements the basic operation of logic and, or, non-, XOR, or the like, then all subtraction operations can be realized by the computing part.

The thinking of 2.0 and 1 reflects the semantic symbolization → symbolic calculation → calculation 0 (and) 1 →0 (and) 1 automation → layered tectonics → structural integration, 0 and 1 are the links between hardware and software, theoretically, any calculation can be implemented by hardware, or software, 0 and 1 is the basis for any computation. Is the most basic abstraction and automation mechanism, symbolic computing is the basic thinking mode of social/natural and computational integration, that is: to make any social/natural problems to be processed by the computer, the first thing is to symbolize the relevant content of the problem and make the corresponding calculation rules.

3. The symbolic case of logic, revealing that the proposition and reasoning of formal logic can be based on the operation of 0 and 1, the basic theory of hardware design-Boolean algebra, that is, the logic and 0 and 1 of the operation of a digital circuit design theory, people's basic thinking mode and the computer's 0 and 1 operations are interlinked.

4. About Chinese characters outside the code, Chinese characters outside the code is not necessarily equal length code, Chinese characters outside the code is not 0,1 encoding, Chinese characters outside the code is used to input Chinese characters into the machine used in the code.

5. With regard to binary arithmetic operations, binary arithmetic operations can be implemented with logical operations, and the symbolic bits of binary arithmetic operations can participate in the operation as well as the numeric bits, and can get the correct results.

The thinking and system of introduction to Computer Science (2)