Zmodem protocol
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Zmodem protocol



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DEFINITION - Zmodem is an error-correcting protocol for modems. Modems that agree on using the Zmodem protocol send data in 512-byte blocks. If a block arrives and an error is detected, a "NAK" (negative acknowledgement) is returned and the block is resent.

See modem error-correcting protocols for a comparison with other error-correcting protocols.

CONTRIBUTORS: Paulo Julio Achoa Mello
LAST UPDATED: 16 Apr 2007


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