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- Help for ALL protocols
-
- Xmodem Transmits 128 byte blocks with acknowledgement after each
- block. Available in any communications program, it is the
- slowest of all. Use only when no other choice is available.
-
- SEAlink An Xmodem variant that is 15-20% faster than Xmodem.
-
- Modem7 An Xmodem variant that is seldom used anymore.
-
- 1k-Xmodem An Xmodem variant using 1024 byte blocks, often erroneously
- called Ymodem. Much faster than Xmodem. Usually the
- third-best choice.
-
- G-1k-Xmodem A 1k-Xmodem variant, for error free channels ONLY (e.g.
- error correcting modems on both ends or direct link).
- One of the fastest protocols. Often erroneously called
- Ymodem-G.
-
- Ymodem An Xmodem variant using 1024 or 128 byte blocks, which
- transmits the filename, date, and size. Much faster than
- Xmodem. Usually the second-best choice.
-
- Ymodem-G A Ymodem variant, for error free channels ONLY (e.g.
- error correcting modems on both ends or direct link).
- Much faster than Xmodem.
-
- Zmodem Usually the best choice, Zmodem transmits data as fast
- as possible on a non-error-free link, transmits the name,
- date, and time of the file, and changes block size as
- line conditions change. Zmodem can resume aborted transfers
- (if your communications program is configured to do so).
- Many programs detect the host sending a Zmodem "header",
- and initiate the download without any user intervention.
-