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From: russotto@eng.umd.edu (Matthew T. Russotto)
Newsgroups: comp.sys.mac.comm
Subject: Re: Very High Speed Modems and Macs
Message-ID: <1990Nov9.202106.9882@eng.umd.edu>
Date: 9 Nov 90 20:21:06 GMT
References: <85816@lll-winken.LLNL.GOV>
Sender: news@eng.umd.edu (The News System)
Organization: College of Engineering, Maryversity of Uniland, College Park
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In article <85816@lll-winken.LLNL.GOV> deboni@fernando.llnl.gov (Tom DeBoni) writes:
>I'm interested in high speed modems, and I've been reading about new standards
>proposals for very high speed operation over standard phone lines. The only
>trouble with all this is finding serial port devices that will go that fast
>and writing system software to support them.Tthis naturally leads me to wonder
>just how fast the serial ports in Macs will go. I've seen measurements
>indicating that Macs have trouble keeping up with 19,200 bps data rates, but

The mac (II series, anyway) will easily keep up with 19,200-- that's the
fastest I have run it, and usually it is the other side (Big Ugly Vax, or
perhaps an MNP 5 modem) that gets overrun, unless I try to do other processor
intensive things-- like display at the same time, or use other programs
under multifinder.  (what I mean is that you can't do text captures at
19200, or even 4800 with 8-bit color on. But file transfers that do not
echo to screen work fine).  (And before you text-based computer freaks
jump on the mac for this, neither will an IBM-PC AT, once it starts scrolling)
--
Matthew T. Russotto	russotto@eng.umd.edu	russotto@wam.umd.edu
Tax the rich, and feed the poor -- until there are, rich no more.