IRQs

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Post #102,340 by Steven A S 5/16/03 10:03:46 PM Reply	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
Post #102,367 by Nightowl 5/17/03 1:51:07 AM Reply	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
Post #102,380 by Nightowl 5/17/03 1:12:08 PM Reply	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) - May 15, 2003, 02:23:33 AM EDT

One question. - (pwhysall) - (4) - May 15, 2003, 07:38:04 AM EDT

Got a recommendation for a graphics card? - (hnick) - (2) - May 15, 2003, 07:59:07 AM EDT

Depends what you want. - (pwhysall) - (1) - May 15, 2003, 08:04:04 AM EDT

Sound good. - (hnick) - May 15, 2003, 09:37:33 AM EDT

Re: One question. - (Nightowl) - May 15, 2003, 12:08:49 PM EDT

Another question - (pwhysall) - (20) - May 15, 2003, 08:06:03 AM EDT

What about... - (folkert) - (2) - May 15, 2003, 08:23:58 AM EDT

Agreed. - (pwhysall) - May 15, 2003, 08:27:45 AM EDT

Re: What about... - (Nightowl) - May 15, 2003, 12:16:43 PM EDT

Re: Another question - (deSitter) - (5) - May 15, 2003, 09:49:27 AM EDT

Well, I see quite the opposite. - (folkert) - (2) - May 15, 2003, 10:57:31 AM EDT

Re: Well, I see quite the opposite. - (Nightowl) - May 15, 2003, 12:22:27 PM EDT

Re: Well, I see quite the opposite. - (deSitter) - May 15, 2003, 12:29:23 PM EDT

I agree with you on this, for both mouse and keyboard - (jake123) - (1) - May 15, 2003, 11:18:43 AM EDT

I differ. - (pwhysall) - May 15, 2003, 11:20:03 AM EDT

Re: Another question - (Nightowl) - (10) - May 15, 2003, 12:12:53 PM EDT

USB Printers - (orion) - (9) - May 15, 2003, 02:32:52 PM EDT

Re: USB Printers - (Nightowl) - (8) - May 15, 2003, 08:38:59 PM EDT

Re: USB Printers - (orion) - (7) - May 15, 2003, 11:15:18 PM EDT

Re: USB Printers - (Nightowl) - (6) - May 16, 2003, 12:37:49 AM EDT

The primary concern with parallel - (Steven A S) - (5) - May 16, 2003, 05:07:51 PM EDT

Re: The primary concern with parallel - (Nightowl) - (4) - May 16, 2003, 06:29:01 PM EDT

Older parallel printers don't use IRQs . . . - (Andrew Grygus) - May 16, 2003, 07:35:13 PM EDT

IRQs - (Steven A S) - (2) - May 16, 2003, 10:03:46 PM EDT

Re: IRQs - (Nightowl) - (1) - May 17, 2003, 01:51:07 AM EDT

Re: IRQs - (Nightowl) - May 17, 2003, 01:12:08 PM EDT

That's what Brian Boitano'd do!
96 ms