Techie Stuff - IRQs

2 EGA/VGA Video
3 Second serial port [COM2, COM4] or bus mouse Network Interface Card
4 COM1, COM3 
5 Second parallel port [LPT2], sound card or NIC
6 Floppy-disk controller 
7 Parallel port (LPT1) 
8 Real-time clock 
9 EGA/VGA Video
10 Available 
11 Available 
12 Mouse (PS/2) 
13 Math coprocessor 
14 Hard-disk controller 
15 Available (unless used for secondary hard-disk controller)

  More Techie Stuff: - I/O Ports -- ASCII -- ASCII2 -- HEX Converter -- Misc. Tips