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ASCII stands for American Standard Code for Information Interchange. It is a character encoding standard that assigns a numerical value to letters, digits, symbols, and control characters used in text-based communication. ASCII was originally designed as a 7-bit code, allowing for 128 unique characters, including:
Control characters (e.g., newline, tab) with codes 0–31.
Printable characters (e.g., letters, digits, punctuation) with codes 32–127.
For example:
The letter 'A' is represented by the decimal value 65.
The digit '0' is represented by the decimal value 48.
Extended ASCII
Later, an 8-bit extension was introduced, expanding the character set to 256 characters. This includes additional symbols, graphical characters, and characters for non-English languages. A common example is the Windows-1252 encoding, which is widely used for extended ASCII.
Applications
ASCII is fundamental in computing and is used in:
HTML ASCII Reference - W3Schools
97 rows · ASCII is a 7-bit character set containing 128 characters. It contains the numbers from 0-9, …
See all 97 rows on www.w3schools.comCHAR NUMBER DESCRIPTION ! 33 exclamation mark Try it " 34 quotation mark Try it # 35 number sign Try it $ 36 dollar sign Try it
ASCII Table / character codes – SS64.com
33 rows · ASCII Table: a complete list of all ASCII codes, characters, symbols and signs included in the …
See all 33 rows on ss64.comDEC HEX ALT ESC 0 0x00 - Ctrl-@ 1 0x01 ☺ Ctrl-A 2 0x02 ☻ Ctrl-B 3 0x03 ♥ Ctrl-C
ASCII - Wikipedia
ASCII reserves the first 32 code points (numbers 0–31 decimal) and the last one (number 127 decimal) for control characters. These are codes intended to control …
ASCII Table - ASCII codes, hex, decimal, binary, html
ASCII (American Standard Code for Information Interchange) character code chart with decimal,hex,binary,HTML and description: ASCII (American Standard Code for Information …
Reference ASCII Table - Character codes in decimal, …
This is a reference table of all of the 256 ASCII characters for reference and use in STEM and computer science projects.
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ASCII Table - ASCII Code Chart with Characters
ASCII Table - Complete ASCII code chart with characters. Also, it contains decimal, hexadecimal, binary, and HTML values.
ASCII Table - ASCII Character Codes, HTML, Octal, Hex, Decimal
ASCII stands for American Standard Code for Information Interchange. Computers can only understand numbers, so an ASCII code is the numerical representation of a character such as 'a' or '@' or an …
ASCII CODE TABLE
The following is a complete ASCII table. You can look up ASCII number for a character. Also look up a character for ASCII number. ASCII currently defines codes for 128 characters: 33 are non-printing …
ASCII Values Alphabets ( A-Z, a-z & Special Character …
Jan 19, 2026 · Since computers work only with binary data (0s and 1s), ASCII acts as a bridge by converting human-readable characters into machine-readable …