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Xref: sserve comp.os.linux.development:18703 comp.os.linux.misc:28843 comp.os.386bsd.questions:14247 comp.os.386bsd.misc:3977 sci.electronics:83334 Path: sserve!newshost.anu.edu.au!harbinger.cc.monash.edu.au!bunyip.cc.uq.oz.au!munnari.oz.au!spool.mu.edu!howland.reston.ans.net!pipex!sunic!news.funet.fi!nntp.hut.fi!nntp!jem From: jem@snakemail.hut.fi (Johan Myreen) Newsgroups: comp.os.linux.development,comp.os.linux.misc,comp.os.386bsd.questions,comp.os.386bsd.misc,sci.electronics Subject: Re: 16550 detection Date: 05 Nov 1994 12:31:42 GMT Organization: Helsinki University of Technology, Finland Lines: 20 Distribution: inet Message-ID: <JEM.94Nov5143142@delta.hut.fi> References: <CMETZ.94Oct30051603@itchy.inner.net> <SRA.94Oct30162124@rurha-pente.epilogue.com> <CMETZ.94Oct30192816@itchy.inner.net> <CyIzxz.97A@cuug.ab.ca> <TYTSO.94Oct31162517@dcl.mit.edu> <MICHAELV.94Oct31211019@MindBender.HeadCandy.com> <TYTSO.94Nov1182557@dcl.mit.edu> <MICHAELV.94Nov1215132@MindBender.HeadCandy.com> <TYTSO.94Nov2113942@dcl.mit.edu> <JKH.94Nov2210122@freefall.cdrom.com> NNTP-Posting-Host: delta.hut.fi In-reply-to: jkh@freefall.cdrom.com's message of 03 Nov 1994 05:01:22 GMT In article <JKH.94Nov2210122@freefall.cdrom.com> jkh@freefall.cdrom.com (Jordan K. Hubbard) writes: >In article <TYTSO.94Nov2113942@dcl.mit.edu> tytso@athena.mit.edu (Theodore Y. Ts'o) writes: > A V.34 modem does 28.8kbps (and you're not going to see much better than > that, I suspect, due to silly things such as Shannon's Limit); on top of >Not to be irrelevant or anything, but wasn't Shannon's Limit used to >prove that modems couldn't go any faster than 2400 baud? I remember >quite a bit of discussion on this in the early 80's! Ahh, a perfect opportunity to point out that Baud != Bps. The unit Baud describes state changes per second, but several bits are encoded in one state. The troughput of a channel is not only limited by the bandwidth but also by the signal to noise ratio. -- Johan Myreen jem@vipunen.hut.fi 60 11' 55" N, 24 53' 30" E