Appendix CIRQ and I/O Port AddressThe factory-set interrupt requests and I/O port addresses are listed below. Find an appropriate oneto install an optional device.Interrupt RequestThe factory-set IRQs are assigned as follows:IRQ Peripheral Device (Controller) IRQ Peripheral Device (Controller)0 System timer 8 Real-time clock1 Keyboard 9 Reserved2 Reserved 10 Reserved3 COMB serial port (PCI) 11 Reserved4 COMA serial port (PCI) 12 Mouse5 Reserved 13 Numeric processor6 Floppy disk 14 P-IDE7 Reserved 15 S-IDE