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New IRQs
I believe it stands for Interrupt Request. Basically an external device sends a signal to it's IRQ to request that the CPU temporarily interrupt it's current process so that the device can send or recieve information to be processed.

There are 16 IRQs; but 4 are used for the internal system, 3 for the normal filesystems (1 floppy, and 2 IDE ports), 2 for the keyboard and mouse (unless using USB devices), 1 or 2 for the sound card, 1 for the graphics card, 1 for each USB root, 1 for each serial port, 1 for each parallel port (though as mentioned they may not be used), etc...
~~~)-Steven----

"I want you to remember that no bastard ever won a war by dying for his country.
He won it by making the other poor dumb bastard die for his country..."

General George S. Patton
New Re: IRQs
Okay, thanks for explaining that. I forgot to ask John about it tonight, cause I got excited listening to the Ducks Vs Wild game, so I'll ask him tomorrow.

Nightowl >8#
"Only dead fish swim with the stream."
Linda Ellerbee
New Re: IRQs
John says Epstein (The Epson LQ-570+) has a parallel port that uses one IRQ, and Xavier (The Xerox one) also has a parallel port who uses an IRQ.

He says we have more than enough IRQs to handle the printers. :)

Thanks.

Nightowl >8#
"Only dead fish swim with the stream."
Linda Ellerbee
     Describing the innards of Nikolai :) (For anyone interested) - (Nightowl) - (26)
         One question. - (pwhysall) - (4)
             Got a recommendation for a graphics card? - (hnick) - (2)
                 Depends what you want. - (pwhysall) - (1)
                     Sound good. - (hnick)
             Re: One question. - (Nightowl)
         Another question - (pwhysall) - (20)
             What about... - (folkert) - (2)
                 Agreed. - (pwhysall)
                 Re: What about... - (Nightowl)
             Re: Another question - (deSitter) - (5)
                 Well, I see quite the opposite. - (folkert) - (2)
                     Re: Well, I see quite the opposite. - (Nightowl)
                     Re: Well, I see quite the opposite. - (deSitter)
                 I agree with you on this, for both mouse and keyboard - (jake123) - (1)
                     I differ. - (pwhysall)
             Re: Another question - (Nightowl) - (10)
                 USB Printers - (orion) - (9)
                     Re: USB Printers - (Nightowl) - (8)
                         Re: USB Printers - (orion) - (7)
                             Re: USB Printers - (Nightowl) - (6)
                                 The primary concern with parallel - (Steven A S) - (5)
                                     Re: The primary concern with parallel - (Nightowl) - (4)
                                         Older parallel printers don't use IRQs . . . - (Andrew Grygus)
                                         IRQs - (Steven A S) - (2)
                                             Re: IRQs - (Nightowl) - (1)
                                                 Re: IRQs - (Nightowl)

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