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From: straka@ihlpf.UUCP
Newsgroups: comp.unix.questions,comp.sys.ibm.pc,comp.sys.att,comp.sources.wanted,misc.wanted
Subject: Re: What is the Diff between Xmodem/Ymodem
Message-ID: <946@ihlpf.UUCP>
Date: Fri, 16-Jan-87 09:52:14 EST
Article-I.D.: ihlpf.946
Posted: Fri Jan 16 09:52:14 1987
Date-Received: Sat, 17-Jan-87 05:16:46 EST
References: <2374@psuvax1.UUCP> <305@hoqax.UUCP> <770@drivax.UUCP>
Organization: AT&T Bell Labs, Naperville, IL
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> >> packages.  What is the difference between Xmodem/Ymodem/Umodem/Kermit.
> 
> XMODEM	128 byte packets, 8 or 16 bit checksum
> UMODEM	?

I think that UMODEM is just a UNIX-based implementation of XMODEM,
including the more advanced XMODEM CRC routines, as well as the original
simple checksums.  I use it (on UNIX) along with XMODEM (on my PC) for
file xfer, and it seems to work just fine.

-- 
Rich Straka     ihnp4!ihlpf!straka