MP>I have checked by BIOS, and it declares Irq 4 to be reserved for COM1.
  MP>But I checked the modem library used by MINITERM, and it claims COM1
  MP>is Irq 2 !!!

Good grief! Where on earth did it get that from?

Com 1 "standard" IRQ is *always* 4, address 3F8.
Com 2 "standard" IRQ is *always* 3, address 2F8.
Com 3 "standard" IRQ is *always* 4, address 3E8.
Com 4 "standard" IRQ is *always* 3, address 2E8.


Mike

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