What does the ascll character mean?

ascll is the abbreviation of "American Standard Code for Information Interchange". The ascll characters include ten numbers from 0 to 9, uppercase and lowercase English letters and special symbols, 95 kinds of printable characters, and 33 kinds of control characters. .

#The operating environment of this article: Windows 7 system, DELL G3 computer.

ASCII code is the abbreviation of "American Standard Code for Information Interchange". It includes ten numbers from 0 to 9, uppercase and lowercase English letters and special symbols, 95 types of printable characters, and 33 types of control characters.

The ASCII code of a character usually occupies one byte and is composed of seven-digit binary number encoding, which can represent up to 128 different symbols!

ASCII ((American Standard Code for Information Interchange) : American Standard Code for Information Interchange) is a computer coding system based on the Latin alphabet, primarily 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 was first published as a standardized type in 1967, and was last updated in 1986. So far, a total of 128 characters have been defined.

Cause

In the computer, all data must be represented by binary numbers when storing and operating (because the computer uses high level and low level respectively to represent 1 and 0), for example, 52 letters (including uppercase letters) like a, b, c, d, numbers such as 0, 1, and some commonly used symbols (such as *, #, @, etc.) when stored in the computer Binary numbers must also be used to represent which symbols are represented by specific binary numbers. Of course, everyone can agree on their own set (this is called encoding), and if everyone wants to communicate with each other without causing confusion, then everyone The same encoding rules must be used, so the relevant standardization organizations in the United States introduced ASCII encoding, which uniformly stipulates which binary numbers are used to represent the above common symbols.

The American Standard Code for Information Interchange was developed by the American National Standard Institute (ANSI) and is a standard single-byte character encoding scheme for text-based data. It was originally an American national standard and was used as a common Western character encoding standard for different computers to communicate with each other. Later, it was established as an international standard by the International Organization for Standardization (ISO), called the ISO 646 standard. Applies to all Latin script letters.

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