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000451_news@columbia.edu _Thu Jan 13 01:24:50 2000.msg
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From: jaltman@watsun.cc.columbia.edu (Jeffrey Altman)
Subject: Re: MS-DOS Kermit, more capabalities
Date: 13 Jan 2000 06:11:26 GMT
Organization: Columbia University
Message-ID: <85jqae$6rl$1@newsmaster.cc.columbia.edu>
To: kermit.misc@columbia.edu
In article <3Pdf4.3605$KP.188008@tw12.nn.bcandid.com>,
<cangel@famvid.com> wrote:
:
: On 1900-01-07 jrd@cc.usu.edu(JoeDoupnik) said:
:
: JD>> Last I knew a calculator could handle binary 10xs the speed of a
: JD>>computer. I don't use the HP but I doubt the 94 byte packet size
: JD>>that is KILLING the Kermit transfer is appropriate.
:
: JD>HP calculators are popular. Some have Kermit protocol within, and
: JD>it is used by happy customers. We like happy customers. We also
: JD>provide plenty of knobs for folks to spiff up their file transfers
: JD>as they wish; we do not do that for them, there being far too many
: JD>"thems" and personal settings of knobs. Flexibility implies making
: JD>choices, and some folks are bothered by that process.
:
: What I'm getting from the above is "Yes the HP can do better than 94 byte
: packets" _but_ "if they don't ask we don't force it on 'em". Right?
No. Joe is saying that Kermit protocol has lots of features that may
be implemented in different ways providing different capabilities.
The HP calculators in particular having varying implementations each
which provide a different level of performance. In most cases the
calculators are limited to 90 character packets and require an ACK
for each packet as it is sent because the flow control either is not
implemented at all or is done very poorly. This has little to do with
the strengths or weaknesses of the Kermit protocol but on the design
of the calculator.
Jeffrey Altman * Sr.Software Designer * Kermit-95 for Win32 and OS/2
The Kermit Project * Columbia University
612 West 115th St #716 * New York, NY * 10025
http://www.kermit-project.org/k95.html * kermit-support@kermit-project.org