Re: XMODEM and YMODEM

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#607

From: Joe Kellett
Date: Thu, 07 Jan 1993 02:48

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shansen@adobe.com (Steve Hansen) writes:
: 
: ...Can anyone recommend a text which explains the history and differences
: and advantages of various telecom protocols (X/Y/ZMODEM & Kermit)?
: 
No, just some oral tradition on X, Y, and Zmodem  (I know nothing of
Kermit)...

The BBS sysops around here all recommend Zmodem.  It reduces its block
size in the presence of line errors to reduce retransmissions.  It
increases the block size again if things clean up.  The best thing about
if you're paying for a call is "crash recovery".  If you restart a Zmodem
transmission after a line drop, Zmodem detects that there is a partial
file on the receiving end and just retransmits the missing data.

Joe Kellett

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Message-ID: <C0GqH4.E62@iat.holonet.net>

Path: arc1-ca.pugleaf.net!sparky!uunet!tcsi.com!iat.holonet.net!jkellett

References: <1993Jan4.220246.28346@adobe.com>

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Newsgroups: comp.protocols.misc
Path: arc1-ca.pugleaf.net!sparky!uunet!tcsi.com!iat.holonet.net!jkellett
From: jkellett@iat.holonet.net (Joe Kellett)
Subject: Re: XMODEM and YMODEM
Message-ID: <C0GqH4.E62@iat.holonet.net>
Organization: HoloNet National Internet Access BBS: 510-704-1058/modem
References: <1993Jan4.220246.28346@adobe.com>
Distribution: usa
Date: Thu, 7 Jan 1993 02:48:38 GMT
Lines: 17

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