🚀 go-pugleaf

Tony Ramsden writes:

 "I have an  internal modem configured to Comm2 & a serial mouse on
 "Comm1 but I wish to connect another serial device.
 "I'm having to disconnect the
 "modem when I want to use the psion interface but what a bind this is!
 "Windows 95

The old PC standard was to have COMs 1,2,3,& 4 on different addresses,
but with COMs 1&3; and 2&4, sharing an IRQ. As you say, this doesn't allow
simulatenous use of COM 1 & 3; and 2 & 4. With sensible software you
should be able to have, say, a modem in COM 2 and a Psion interface in 
COM 4 so long as you don't use them simultaneously. I'm not sure if there
are any additional problems in Win95.

However, most modern hardware and software supports other IRQs on COM 
ports. If, say, IRQ 5 is free, if your Psion interface and associated 
software allows it you could use it as the COM4 IRQ. This involves fiddling 
inside Win95, of course.

HTH,
-- 
Michael Salem