Date   : Tue, 29 Dec 1992 02:13:46 GMT
From   : sdd.hp.com!think.com!garyo@hplabs.hpl.hp.com (Gary Oberbrunner)
Subject: Re: Kaypro II

In article <27709@optima.cs.arizona.edu> reynaert@cs.arizona.edu (Jim B.
Reynaert) writes:

   Newsgroups: comp.os.cpm
   From: reynaert@cs.arizona.edu (Jim B. Reynaert)
   Date: 7 Dec 92 21:37:07 GMT
   Keywords: SIO & CRT
   Lines: 18

          I have benn having problems with my communications when I use an
   external modem at 2400 BPS, Some characters are lost while the comunication
   is going on. This only happens when there is output to my adm3a screen.
          Curiously, this doesn't happen at 1200 BPS or less. Also I have down
   loaded files at 2400 BPS and no data has been lost... It would be nice
for me
   to be able to communicate at 2400 BPS without having to guess what the
output 
   to the screen was ex...    instead of more it writes "me" or instead of 
   password it types "psswd", I would like to know if somebody out there
has or 
   had the same problem and if so how did you fix it. Is it probably a
   bad Microchi? And if so which one? 
          I appreciate any help that I can get, thank you in advance
                                          Jim.

   P.D. please send e-mail...

[I tried replying to this by email, but it bounced due to "User unknown"]

I see from this posting on comp.os.cpm that some people are doing serial
communications on a Kaypro II.  My mother has a Kaypro too, and she's about
to dump it in favor of a Mac.  What comm software do you use folks use on
the Kaypro?  Is it public domain?  Can I get a copy?  Can it do xmodem or
kermit or some such file transfer protocol?  Or do you know of any way I
can read a CP/M disk on anything else (even a PC would be OK, I can get it
to the Mac from there)?

ps: I suspect the answer to your question about data lossage is that you
are not using any flow control.  You probably have to set up your comm
package and your modem to do flow control (either software, ^S/^Q, or
hardware, RTS/CTS) between them.

pps: want a used Kaypro? :-)

Thanks!  Please respond by email to me if possible.

                               - Gary Oberbrunner
                               Thinking Machines Corporation
                               245 First St
                               Cambridge, MA 02142
                               garyo@think.com