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- Path: mars.hyperk.com!usenet
- From: lukes@srv.net (Rob Luke)
- Newsgroups: comp.dcom.modems
- Subject: Re: Why 33600?
- Date: 16 Apr 1996 00:31:17 GMT
- Organization: HyperK a Division of Scientech, Inc.
- Message-ID: <4kupol$6li@mars.hyperk.com>
- References: <4kn9v9$n6e@solaris.cc.vt.edu> <4kok44$mj9@hg.oro.net> <317237dc.836868@snews.zippo.com>
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- In article <317237dc.836868@snews.zippo.com>, an514295@anon.penet.fi says...
- -
- -estarry@oro.net (Ed Starry) wrote:
- -
- - Not really! If people would start demanding (and using) 'cached serial
- -ports' they would discover even 14.4's are much faster than they realize. -o
- -me this increasing of the Analog Rate is a marketing ploy.
- -
-
- Maybe you should do your homework and realize that the true marketing gimmick
- is vendors (i.e., HAYES) who claim that raising the DTE speed somehow makes a
- standard modem into some kind of "super-modem." I hate to point this out,
- but MOST transfers people do with their modems occur with PRECOMPRESSED
- files!!! [You know, like ZIP, GIF, JPG, etc.] The actual bytes per second
- over a serial link is much higher with these types of files than the V.42bis
- "compression" could ever get.
- Unless all you do is transfer files consisting of 10 billion zeros, the
- actual bit rate of the modem will be more important than nonsensical DTE
- rates. BTW, if I'm wrong, why isn't your 230k DTE modem faster on the net
- than your neighbor's 128k (uncompressed) ISDN hookup?
-
-
- -What the hell is a "cached serial port"? FIFO buffers are commonly used
- -to cache data, but the fact remains that a 28.8 modem, which can transfer
- -data at 3000-3300 cps, IS FASTER than a 14.4 modem, which transfers data at
- -1400-1600 cps. "Cacheing" data means little when the modem itself won't
- -move it in and out of your computer faster.
- -
- -Think of it like a water pipe. A larger diameter pipe is capable of
- -transfering the same amount of water (data) much faster than a smaller pipe
- -can. Adding a water holding tank (cache) will not improve the actual
- -transfer rate through the system.
- -
- -I suspect you have never used a 28.8 modem or this conversation would not
- -be occuring.
- -
-
- I couldn't agree more.
-
-
-
- Rob "everyone switch from your 10BT connection to a HAYES 28.8" Luke
-
-