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- Path: in2.uu.net!oronet!usenet
- From: estarry@oro.net (Ed Starry)
- Newsgroups: comp.dcom.modems
- Subject: Re: Why 33600?
- Date: Sun, 14 Apr 1996 14:00:36 -0700
- Organization: "oronet, Penn Valley, CA"
- Message-ID: <4krp3c$gn8@hg.oro.net>
- References: <4kn9v9$n6e@solaris.cc.vt.edu> <4kok44$mj9@hg.oro.net> <4kpm5k$joo@bristlecone.together.net>
- NNTP-Posting-Host: estarry.oro.net
- X-Newsreader: Forte Free Agent 1.0.82
-
- krw@together.net wrote about {Re: Why 33600?} in 'comp.dcom.modems'...
-
- ~In <4kok44$mj9@hg.oro.net>, estarry@oro.net (Ed Starry) writes:
-
- ~> 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. To
- ~>me this increasing of the Analog Rate is a marketing ploy.
- ~> The marketing image that 'bigger is better' has overshadowed the more
- ~>sensible notion of 'bigger is simply bigger'. Diminishing returns is never
- ~>considered when it pertains to advertising.
- -------------------------------------------------------------
-
- ~ Ed, I think you have some explaining to do here. Just what the hell is a
- ~ cached serial port, and why would want to cache a serial port? If you mean
- ~ buffering it (as in a FIFO) this is the norm. No, 28.8K will not give twice the
- ~ performance of a 14.4K, much the same way that a Pentium 133 will not get
- ~ your work done twice as fast as a P66.
- ===============================
-
- Simply put, 'A cached serial port is a serial port that's cached!' An
- internal modem IS cached. An external modem ISN'T, unless it's using a
- cached serial port card (Hayes ESP, et al). I'm referring to the 1,024 byte,
- or higher, DRAM I/O Buffers that are tied together with a Caching Controller
- and straddle the UART. This caching is "mandatory" for on the fly
- compressing of zip/gif files.
-
- My little internal 14.4 runs very nicely at a 115,200 bps rate (Enhanced
- V.42bis) 'without errors' and the RxFIFO is set at 14. Try transferring
- files in the background 'error free' while playing DOOM full screen in the
- foreground, at the same time naturally. I'm using WfW v3.11 and a 486DX33.
-
- You desire hardware caching for your CD-ROM, I have hardware caching for my
- modem. Same idea, things go faster! I might ask, 'Why would you want a modem
- that DOESN'T have its serial port cached?' Contrary to popular belief many
- 14.4 modems can transfer files at a 11,000+ cps rate.
-
- PS: The colored sheet signature line is a test of logic, did you pass?
-
- Ed...
- _______________________________________________
-
- All my sheets are white except my colored ones!
-
- ** Common Sense Is Not Common **
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