What is the representation of the data in the computer?
This article mainly introduces what is the representation of the data in the computer, which has a certain reference value, which can be used for reference by friends who need it. I hope you will learn a lot after reading this article. Next, let the editor take you to learn about it.
The representation of data in a computer is binary.
Computer data representation refers to the data representation method that the processor hardware can identify and store, transmit and process.
A representation of data that the processor hardware can recognize and store, transmit, and process. The data representation of a processor is prescribed by the processor designer, although the source and form of the data are different, but all data entered into the processor and processed by it must comply with the regulations. Software designers can also define various data types (such as imaginary numbers, vectors, etc.) and organize complex data structures (such as records, documents, etc.).
Early mechanical and relay computers used basic elements with 10 stable states to represent decimal data bits. , 9 . The data bits of a data are arranged in an exponential order of 10, such as 386.45 × 10 × 10 × 8 × 10 × 10 × 10 × 10 × 4 × 10 × 5 × 10. However, it is difficult to require the basic electronic components of the processor to have 10 stable states, and the logic circuit of the decimal arithmetic unit is also complicated. Most components have two stable states, the binary operation is relatively simple, and the equipment can be saved, the binary and processor logic operations can be coordinated, and it is easy to simplify the processor logic design with logic algebra. Therefore, binary is widely used.
Fixed-point representation in binary, 0 and 1 are represented by two steady states of the processor's electronic components, respectively, and 2 is the base of the number. Binary number
Character data representation is called character data, which is composed of binary bit sequences for input, processing, and output. Character data includes various operational symbols, relational symbols, currency symbols, letters and numbers, and so on. What is commonly used in China is the national standard GB1988-80 "Seven-bit coded character set for Information processing and Exchange" issued in 1980 (see table). It represents 128characters with seven binary bits. It includes 32 control character sets, 94 graphic character sets, one interval character and one erasure character.
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