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Article #301

Re: Dial-up Modem Speed of 56 Mbps? - Can't believe anyone took this seriously...

#301
From: thanatoid
Date: Wed, 25 Apr 2007 18:46
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2519 bytes
"Strings" <strings@example.net> wrote in
news:462f31bd$0$97228$892e7fe2@authen.yellow.readfreenews.net:

>> AFAIK, ALL modems except the earliest models ever (300
>> baud etc.) use compression to achieve their "rated
>> speeds", 
> 
> this is definitely wrong since you can download zipped
> files (bz2, 7z) at 50 kbps on a clean line.  those types of
> files cannot be compressed much by v.44.
> 
> there is no *general* compression algo that can magically
> compress any file. text, HTML, xls, can be compressed
> because they are highly redundant i.e. low entropy. 

You know more than I but you are not being logical. A modem can 
NOT handle more than, say - in my case - 3500bps of data. Of 
course, if that data was compressed to begin with or if it is 
sent using yEnc, I will get it more of it in less time. And 
certain text files can be compressed by 85% or more as anybody 
who has ever zipped one knows. A bmp file will take forever 
while a visually equivalent jpg sent using yEnc will take 1/15 
of the time.

All that, however, has NOTHING to do with the subject. A modem 
can only do SO MUCH with ANY data it receives.


-- 
Disagreements and the usual insults expected and welcomed.
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Subject: Re: Dial-up Modem Speed of 56 Mbps? - Can't believe anyone took this  seriously...
From: thanatoid <waiting@the.exit.invalid>
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