Encoding and computer storage

Source: Internet
Author: User

(1) What is the encoding coding:

  • Encoding is the process of converting information from one form or format to another, also known as a code abbreviation for a computer programming language. The text, numbers, or other objects are digitally digitized by a predetermined method, or the information or data is converted into a prescribed electrical pulse signal. Coding is widely used in computer, television, remote control and communication. Coding is the process of converting information from one form or format to another. Decoding, is the inverse process of coding.
  • In computer hardware, coding (coding) refers to the use of code to represent groups of data, making it information that can be processed and analyzed using a computer. Code is a notation used to represent things, which can be represented by numbers, letters, special symbols, or combinations of them.
  • In map automatic mapping, the process of using numbers and letters to represent the contents of a map by certain rules, by encoding, enables the computer to recognize the geographic elements of the map.
  • There are two kinds of coding commonly used in digital system, one is binary encoding and the other is decimal code.

(2) GB and GBK

  • GB encoding standard, the more commonly used is GB2312 and GBK two kinds, GB2312 is a subset of GBK.
  • GBK uses a double-byte representation, the overall encoding range is 8140-fefe, the first byte is between 81-fe, and the tail byte is between 40-fe, rejecting xx7f a line. A total of 23,940 code positions, a total income of 21,886 Chinese characters and graphic symbols, including Chinese characters (including radicals and components) 21,003, graphic symbols 883.

Encoding and computer storage

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