The radios are typically serial (comm).  I think that’s why you see “comm ports” discussed.  I don’t think anyone is using a comm port on the computer.  There’s hardware in the cables to interface usb to serial.   <br><div class="gmail_quote"><div dir="ltr">On Thu, Oct 4, 2018 at 5:31 PM Clayton Brantley &lt;<a href="mailto:clayton_k4qm@sc.rr.com">clayton_k4qm@sc.rr.com</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">That makes sense. I am used to comm ports from the early days and running a packet bbs.  Remember W0RLI and the old Xerox ,820 boards?</div>_______________________________________________<br>
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