ANSI/INCITS 4-1986 Information Sysytems - Coded Character Sets - 7-Bit American National Standard Code for Information Interchange (7-Bit ASCII) formerly ANSI X3.4-1986; FIPS PUB 1-2
This standard specifies a set of 128 characters (control characters and graphic characters, such as letters, digits, and symbols) with their coded representation.
ANSI/INCITS 4-1986 history
1986ANSI/INCITS 4-1986 Information Sysytems - Coded Character Sets - 7-Bit American National Standard Code for Information Interchange (7-Bit ASCII) formerly ANSI X3.4-1986; FIPS PUB 1-2