What is the most commonly used character encoding in computers?

The most commonly used character encoding in computers is ASCII code. ASCII is a computer coding system based on the Latin alphabet. It is the most common information exchange standard and is equivalent to the international standard ISO/IEC646.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The most commonly used character encoding in computers is ASCII code.

ASCII ((American Standard Code for Information Interchange): American Standard Code for Information Interchange) is a computer coding system based on the Latin alphabet, mainly used to display modern English and other Western European languages. It is the most common information exchange standard and is equivalent to the international standard ISO/IEC 646.

ASCII code uses a specified 7-bit or 8-bit binary number combination to represent 128 or 256 possible characters. Standard ASCII code, also called basic ASCII code, uses 7 binary digits (the remaining 1 binary digit is 0) to represent all uppercase and lowercase letters, numbers 0 to 9, punctuation marks, and special controls used in American English. character.

0~31 and 127 (33 in total) are control characters or communication-specific characters (the rest are displayable characters), such as control characters: LF (line feed), CR (carriage return), FF (form feed) ), DEL (delete), BS (backspace), BEL (ring), etc.; communication special characters: SOH (head of text), EOT (end of text), ACK (confirmation), etc.; ASCII values ​​are 8, 9, 10 and 13 are converted to backspace, tab, line feed, and carriage return characters respectively. They do not have a specific graphic display, but will have different effects on text display depending on the application.

32~126 (95 in total) are characters (32 is a space), of which 48~57 are ten Arabic numerals from 0 to 9.

65~90 are 26 uppercase English letters, 97~122 are 26 lowercase English letters, and the rest are some punctuation marks, arithmetic symbols, etc.

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