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- Path: inforamp.net!ts46-15
- From: crs0794@inforamp.net (Geoffrey Welsh)
- Newsgroups: comp.dcom.modems
- Subject: Re: Is USR going to support 42bis+ on future courier upgrades?
- Date: 5 Apr 1996 04:23:54 GMT
- Organization: InfoRamp Inc., Toronto, Ontario (416) 363-9100
- Message-ID: <4k278q$l3@sam.inforamp.net>
- References: <4j2fv1$8kf@nnrp1.news.primenet.com> <4j2iun$a3t@newsbf02.news.aol.com> <4j3r1f$1tc4@seminole.gate.net> <4j468j$gg1@drencrom.insync.net> <4j68or$nug@navajo.gate.net> <4j7iai$qcc@drencrom.insync.net> <4jbasq$102o@navajo.gate.net> <eric-2803961812090001@sobt.ao.net>
- NNTP-Posting-Host: ts46-15.tor.istar.ca
-
- In article <eric-2803961812090001@sobt.ao.net>, eric@ao.net (Eric Shaw) wrote:
- >Hmmm, LAPLINK generally means transferring stuff through the PARALLEL PORT,
- no?
-
- LapLink works through serial or parallel.
-
- >I seriously doubt it can get more than 5-10K/s through your serial port,
-
- I normally expect 40K/sec or better through parallel on a 486 or faster CPU.
-
- >if that. Sending stuff through the parallel port is at least 8 or 16 bits
- >at a time, while the serial port gets 1 bit at a time. Normal DOS comm
-
- Actually, a standard parallel port is not bidirectional; it has 8 data bits
- plus some handshake bits set for output, but only five bits for input.
-
- >programs do NOT use the parallel port, so this is most definately apples
- >and oranges.
-
- But, comparing LapLink's serial I/O (which does run fine at 115.2 on most
- machines, even XTs) to comm programs is perfectly legitimate... as long as you
- realize that LapLink runs in polled mode and most comm software is
- interrupt-driven.
-
- --
- Geoffrey Welsh, Developer, InSystems Technologies Inc.
- Temporary: crs0794@inforamp.net; At work: insystem@pathcom.com
- At home: geoff@zswamp.uucp or [xenitec.on.ca|m2xenix.psg.com]!zswamp!geoff
- Capitalism is a cold-hearted system which guards the interests of whoever's
- at the top, yet hypocritically claims that it offers everyone a fair shot.
- So is every other system ever put in place by man.
-