1. 
   ZModem
   Currently, the standard for modem protocols. Along with improved speed, the ZModem protocol can capture packets of data if an interruption if the data transmission occurs.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   ZMODEM
   (protocol) A file transfer protocol with error checking and crash recovery. Developed by Chuck Forsberg. Its transfer rate is similar to YMODEM-g. Like YMODEM-g, ZMODEM does not wait for positive acknowledgement after each block is sent, but rather sends blocks in rapid succession. If a ZMODEM t...
   Found op http://foldoc.org/ZMODEM
   
   
3. 
   ZMODEM
   ZMODEM is a file transfer protocol developed by Chuck Forsberg in 1986, in a project funded by Telenet in order to improve file transfers on their X.25 network. In addition to dramatically improved performance compared to older protocols, ZMODEM also offered restartable transfers, auto-start by the...
   Found op http://en.wikipedia.org/wiki/ZMODEM
   
   

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