Acknowledge character (ACK): A transmission control character transmitted by the receiving station as an affirmative response to the sending station.
Note: An acknowledge character may also be used as an accuracy control character.
In Unicode, the hexadecimal code number is 0x06. Unicode is an industry standard whose goal is to provide the means by which text of all forms and languages can be encoded for use by computers. ... In mathematics and computer science, hexadecimal, or simply hex, is a numeral system with a radix or base of 16 usually written using the symbols 0â9 and AâF or aâf. ...
Source: From Federal Standard 1037C Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. ...