!!! Overview
[{$pagename}] is an [Abbreviation] of [acknowledgement] and a [Data representation] for a [Control character]

When the [ASCII] code is used to communicate between computer terminals, each terminal can send an enquiry character to request the condition of the other. The receiver of this character can respond with [{$pagename}] (00001102 or 616) to indicate that it is operating normally, or [NAK|NACK] (00101012 or 1516) to indicate an error condition. [Unicode] provides visible symbols for these characters, U+2406 (␆) and U+2415 (␕).

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]