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Meaning of ACK

 
Computing Dictionary
 
 Definition: 

1. /ak/ The mnemonic for the ACKnowledge character, ascii code 6.

2. A message transmitted to indicate that some data has been received correctly. Typically, if the sender does not receive the ACK message after some predetermined time, or receives a nak, the original data will be sent again.

[jargon file]

 

 

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