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From: bson@rice-chex.ai.mit.edu (Jan Brittenson)
Newsgroups: comp.sys.handhelds
Subject: Re: Zmodem
Keywords: hp48
Message-ID: <13150@life.ai.mit.edu>
Date: 3 Feb 91 04:57:31 GMT
Sender: news@ai.mit.edu
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   It appears to me that the HP-48 cannot sustain a feed of 9600 bps.
Effectively, it seems to be capable of roughly 3600-4800 bps.
Extending the packet size probably won't help much, since it will
likely just increase the delay.

   Now some advantages of Kermit: it has been around for a long time,
people know how it works, it doesn't rely on any patented compression
algorithms, it can cope with systems that have different word sizes,
bit orderings, character sets, and communication subsystems. Its
strength is that the specification is not based on any specific
machine or system, but rather that it's a general independent
protocol. The C code is relatively easy to port. Kermit also exists on
damned near every system I can care to name, including VM/CMS, Primos,
even RSX-11M.

   It would be utterly cool if someone implemented Ymodem, or FTP, or
whatever - I would be the first to love it! But I also hail HP for
putting the Kermit protocol in ROM in the first place.

						-- Jan Brittenson
						   bson@ai.mit.edu

;; "Make sure the brain is connected before the mouth is started."