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Meanings and definitions for NACK
What does NACK stand for? What does NACK mean?
- In data networking, telecommunications, and computer buses, an acknowledgement (ACK) is a signal that is passed between communicating processes, computers, or devices to signify acknowledgement, or receipt of message, as part of a communications protocol.
- Negative ACKnowledge, normally spelled NAK: ASCII decimal code 22, used in response to ACK in communications handshakes
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