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Path: utzoo!utgpu!water!watnot!watmath!clyde!cuae2!ihnp4!drutx!druhi!clive
From: clive@druhi.UUCP
Newsgroups: comp.sources.wanted
Subject: Re: Re: ZMODEM for MS-DOS?
Message-ID: <1681@druhi.UUCP>
Date: Tue, 17-Feb-87 20:57:44 EST
Article-I.D.: druhi.1681
Posted: Tue Feb 17 20:57:44 1987
Date-Received: Wed, 18-Feb-87 22:23:13 EST
References: <160@parcvax.Xerox.COM>
Organization: resident visitor
Lines: 43
Keywords: ZMODEM wanted
Summary: how to find YMODEM


Disclaimer:  don't know the outfit


Here's the place to find Y/Zmodem:

			   Omen	Technology Inc
			17505-V	Sauvie Island Road
			  Portland Oregon 97231
			   Voice: 503-621-3406
	    Modem (Telegodzilla): 503-621-3746 Speed 1200,300
			  Compuserve: 70007,2304
		    UUCP: ...!tektronix!reed!omen!caf


Short summary that was on net:

1.  ROSETTA STONE

Here are some definitions which	reflect	the current vernacular in the
computer media.	 The attempt here is identify the file transfer	protocol
rather than specific programs.

XMODEM	refers to the original 1979 file transfer etiquette introduced by
	Ward Christensen's 1979	MODEM2 program.	 It's also called the
	MODEM or MODEM2	protocol.  Some	who are	unaware	of MODEM7's
	unusual	batch file mode	call it	MODEM7.	 Other aliases include
	"CP/M Users's Group" and "TERM II FTP 3".  This	protocol is
	supported by every serious communications program because of its
	universality, simplicity, and reasonable performance.

XMODEM/CRC replaces XMODEM's 1 byte checksum with a two	byte Cyclical
	Redundancy Check (CRC-16), giving modern error detection
	protection.

XMODEM-1k Refers to the	XMODEM/CRC protocol with 1024 byte data	blocks.

YMODEM	refers to the XMODEM/CRC (optional 1k blocks) protocol with the
	batch transmission described below.

ZMODEM	uses familiar XMODEM/CRC and YMODEM technology in a new	protocol
	that provides reliability, throughput, file management,	and user
	amenities appropriate to contemporary data communications.