Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.3 alpha 4/3/85; site ukma.UUCP
Path: utzoo!watmath!clyde!cbosgd!ukma!sean
From: sean@ukma.UUCP (Sean Casey)
Newsgroups: net.misc
Subject: Re: Personal netnodes?
Message-ID: <1914@ukma.UUCP>
Date: Mon, 24-Jun-85 21:33:25 EDT
Article-I.D.: ukma.1914
Posted: Mon Jun 24 21:33:25 1985
Date-Received: Wed, 26-Jun-85 04:41:23 EDT
References: <490@gargoyle.UChicago.UUCP> <695@vortex.UUCP> <136@peregrine.UUCP>
Reply-To: sean@ukma.UUCP (Sean Casey)
Organization: The White Tower @ The Univ. of KY
Lines: 37

In article <136@peregrine.UUCP> mike@peregrine.UUCP (Mike Wexler) writes:
>For those of you that have dial up asynchrous modems, there is
>a relatively unknown product available.  It is called an accelerator.
>It does three very useful things.
>1. It huffman encodes all transmissions to increase transmission speed.
>2. It does error checking and correction.
>3. It does speed conversion.
>It costs about $1000 dollars(you need one at each end).  And is made by 
>a company named Telebyte.  We have two of them and love them.  It makes
>remote demos possible.  Not only can you go through pbx's, if someone
>picks up the phone you don't get junk on the screen(if they hang it up
>quick enough so that the modems don't drop carrier, you will notice

One really doesn't need one of these.  We run all our news through
compress and uncompress.  It uses Lempel-Ziv compression, which gives
better compression than Huffman codes.  Compress is free for the
asking, and since we have the source, it is completely under our
control.  If we want to send compressed news to someone, we simply give
them the program. This way, neither end has to buy a special purpose
modem.

Our cheapo Racal-Vadics don't have error correction, but given the
same premise that they aren't interrupted sufficiently to drop carrier,
the software handles the error correction within the protocol.


"The ability to choke people remotely is insignificant compared to
 the power of Software."
				- not Darth Vader



-- 

-  Sean Casey				UUCP:	sean@ukma   or
-  Department of Mathematics			{cbosgd,anlams,hasmed}!ukma!sean
-  University of Kentucky		ARPA:	ukma!sean@ANL-MCS.ARPA