The ASCII table, or American Standard Code for Information Interchange, is a 7-bit character encoding system that represents 128 unique characters, including control and printable characters. ASCII Table - Complete ASCII code chart with characters. Also, it contains decimal, hexadecimal, binary, and HTML values. ASCII characters, including those from the extended ASCII character sets, are stored in memory as 8-bit bytes. Each ASCII character has a unique 7-bit binary code, with values ranging from 0000000 (0 in decimal) to 1111111 (127 in decimal). When storing an ASCII character in memory, the 7-bit binary code is placed in a byte with the most significant bit (MSB) set to 0, effectively making it an 8-bit value. Extended ASCII character sets, such as ISO-8859-1 (Latin-1) or Windows-1252 (CP1252 ... The ASCII code includes control characters and printable characters: digits, uppercase letters and lowercase letters. ASCII vs Unicode ASCII is a 7-bit characters code, with values from 0 to 7F 16. Unicode characters code is a superset of ASCII that contains the ASCII code with values from 0 to 10FFFF 16 Unicode character table