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