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Compaq PC Microphone  Microphone

How fast is PC-PC null modem connection?

By Brad - usenet poster


: hi. thanks. i looked at both the paper and online manual
: pages for interlnk.

: it says that host must be running DOS 6.0 or later, but both of
: my 286 PCs run DOS 5.0.

I run PC-DOS 5 on my machines. I used the INTERxxx programs from MS-DOS
6.22 and it worked correctly.

-- PRR
-- Jim Van Nuland, San Jose (California) Astronomical Association

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Solution #1
posted on Aug 02, 2007
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Hart

Hart - usenet poster

Rank:Apprentice Apprentice
Rating: 0%, 0 votes
Greetings,


Bull chips. A '286 is more than fast enough to run full-bore 115kb/s
assuming the standard (16 byte?) FIFO. This is still not 20-30kB/s.
A parallel connection is needed to get 512 - 1Mb/s (64 - 128kB/s).

--kyle

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Solution #2
posted on Aug 02, 2007
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Green1

Green1 - usenet poster

Rank:Apprentice Apprentice
Rating: 0%, 0 votes
Your 286 will be unable to keep up with even the modest 11 Kb/s speed of a
full-bore serial port. You might try a network connection instead.

# __ __ Eric Ewanco
# IC | XC eje @ world.std.com
# ---+--- #
# NI | KA Framingham, MA; USA

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Solution #3
posted on Aug 02, 2007
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jessie25

jessie25 - usenet poster

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On 11 May 1998 21:33:16 GMT, Tomoyuki Tanaka put finger to keyboard
and composed:

I use Diskedit (Norton Utilities).

- Franc Zabkar

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Solution #4
posted on Aug 02, 2007
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kcw573

kcw573 - usenet poster

Rank:Apprentice Apprentice
Rating: 0%, 0 votes
You use DEBUG (part of ms-dos) or a sector editor.

--
MerciYvan Make something idiot-proof, &
Internet: someone will invent a better idiot!

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Solution #5
posted on Aug 02, 2007
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Janice

Janice - usenet poster

Rank:Apprentice Apprentice
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i messed around with "procomm.dir" a bit and it looks like i'll
be be able to do it.

how do you edit a binary file like that in DOS?

i don't know an easy way to do this even in Unix.
(i'd prob. use sed or tr.)

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Solution #6
posted on Aug 02, 2007
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Lizzy

Lizzy - usenet poster

Rank:Apprentice Apprentice
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That's because PROCOMM.DIR is really a binary file and if you use any
editor to _add_ characters in the middle of the file, the directory
won't load properly. It's been so long since I used Procomm
(although I still have an original registered DOS version on the 360K
floppy from Datastorm) that I can't tell you whether anyone ever
patched it successfully to handle high-speed modems with 38400 or
higher port rates.

I do know that the original Procomm did _not_ have support for the
16550 UART, which could be another and more important limitation for
you. Look for COMMO, a shareware comm program. It will run on any
DOS-based system you're likely to have, even from a 360K floppy. It
can handle high-speed modems just fine including properly supporting
high-speed ports (16550 UART and above) and rates that are much
higher than 115,200 bps.

--
Ronald Dailey, San Bernardino, CA, USA,
Inland Computer Users (ICU) BBS: (909)825-4042
Standard Disclaimer: I speak and write for myself, alone.

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