David Somers said the following to All on the subject of
COM4 (21 Jul 97  10:39:00)
 DS> I don't know if this is off-topic or not. I currently have a USR
 DS> Sportster 28.8 on COM2. I'm thinking about buying a 56K and put it on
 DS> COM4. But, I don't know where COM4 is. I have a Pentium PCI/ISA
 DS> motherboard.
 DS> I have my 28.8 is an ISA slot. Would I put the 56K is another ISA slot
 DS> and call it COM4, or is there a special port that is designated for
 DS> COM4?
I see, you are adding another internal modem. If you don't intend to use
both modems then simply replace the 28.8's slot with the new modem setup
for COM2.
If both modems are working together, then setup the 56K modem as COM3 or
COM4 with IRQ5 and drop it into the ISA slot. Adjust your terminal to
use the new hardware settings and go make a connect.
The name COM4 simply represents a logical device. Once the internal
modem card is configured as COM4 it makes available a series of ports
starting at port 2E8 with which the terminal software can communicate.
--- Blue Wave/DOS v2.30
---------------