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From: anthes@geocub.UUCP (Franklin Anthes)
Newsgroups: comp.sys.amiga
Subject: Re: Source & Docs for Opus ZModem Available
Message-ID: <169@geocub.UUCP>
Date: Mon, 19-Oct-87 11:31:31 EDT
Article-I.D.: geocub.169
Posted: Mon Oct 19 11:31:31 1987
Date-Received: Tue, 20-Oct-87 20:42:59 EDT
References: <959@cup.portal.com> <1810@cadovax.UUCP>
Reply-To: anthes@geocub.UUCP (Franklin Anthes)
Organization: Greco-Programmation, Bordeaux. France
Lines: 37

In article <1810@cadovax.UUCP> keithd@cadovax.UUCP (Keith Doyle) writes:
>In article <959@cup.portal.com> Rick_Allen_Huebner@cup.portal.com writes:
>>
>>   Have I got a deal for you...
>>
>>   I'm the developer of the ZModem file transfer protocol implementation used
>>in the Opus BBS system. ZModem is about the best protocol available for micros
>>these days, and users worldwide have been enjoying its use on Opus for some
>>time now.  But I have a problem... my BBS is Amiga-oriented, not PClone-
>>oriented like most other Opus boards.  And there are no PD/Shareware ZModem
>>capable terminal programs available for my users to use!  
>
>Ok, so what does ZModem do that's fantastic?

 Well I'm certainly not an expert on Zmodem, but I have looked over the unix
version of it, and it seems to combine a lot of nice features:

	- Windowing protocol
	- Multiple file sends (like Kermit)
	-"intelligent" file name translation when sending between different OS's
	- Unix implementation readily available (I have it:-) )
	- Translation of EOL markers, for different OS's
	- I don't think it has xmodem's file length problems
 
 From what the author of the Unix version (Chuck Forsberg) says, zmodem will
get you a transfer rate pretty close to the raw speed of your modem. While
using kermit I only get 300 b/s, using a 1200 b/s modem! For that alone, I
think it's worth implementing. (this is using a packet switching network,
with a pretty long latency, that's why windowing is such a big win)

 As a matter of fact, I am seriously considering integrating zmodem into 
vt100. But what's the advantage of starting out from the OPUS zmodem, rather
than the Unix Zmodem? (Huh Rick?)
-- 

	Frank Anthes-Harper
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