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Path: utzoo!watmath!clyde!cbosgd!ihnp4!houxm!vax135!cornell!jqj
From: jqj@cornell.UUCP (J Q Johnson)
Newsgroups: net.dcom
Subject: Re: interactive (host=>PC) data compression wanted
Message-ID: <885@cornell.UUCP>
Date: Thu, 3-Oct-85 05:19:45 EDT
Article-I.D.: cornell.885
Posted: Thu Oct  3 05:19:45 1985
Date-Received: Fri, 4-Oct-85 03:43:34 EDT
References: <741@cornell.UUCP> <294a86e4.8e4@apollo.uucp>
Reply-To: jqj@cornell.UUCP (J Q Johnson)
Organization: Cornell Univ. CS Dept.
Lines: 16

In article <294a86e4.8e4@apollo.uucp> nazgul@apollo.uucp (Kee Hinckley) writes:
>It is my belief that some of the new 4800 baud modems under development
>do this internally (that is, they are actually 2400 baud + data
>compression).  It would be interesting if that technology trickled
>down to the 1200 baud modems, but of course you'll have to buy a
>new modem...
No, you'll have to buy at least *2* new modems, and probably n > k where
k is the number of modems in your modem pool on the host.  Switching to
a new modem protocol can be very expensive!  One solution is an outboard
data compression box that you can add on, but box+modem is probably still
a lot more expensive than an integrated solution.

The advantage of doing it in software, at least on the client end, is
that you already have this overpowerd PC sitting there waiting to be used.
Presumably, the PC can also be a lot smarter about its compression algorithm
than could an inexpensive modem.


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