Re: Plug'n'Play? I think not!

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#551

From: Harry Broomhall
Date: Tue, 29 Jun 1999 00:00

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In article <rO9ACAAphHe3EwAI@dunvegan1.demon.co.uk>,
	Paul Richards <Paul@dunvegan1.demon.co.uk> writes:
> Tom Bird writes,
> [stuff about IRQ's]
> 
> It's amazing how much trouble some ppl have with IRQ's and I've never
> had any problems with them.  I've got 2 ISA cards, 2 PCI cards, 2 COM
> ports (do these take IRQ's?)

  Yes.

> and 1 LPT port (takes an IRQ?).

  Depends. If in standard mode then it doesn't need one.  In ECP mode
it will try and grab one.

>  How many IRQ's do PC's have?

   In theory - 16. Some are predefined by the PC, so rather fewer than
that are available for plug-in cards.

>  Is there a "map" of IRQ's somewhere that shows you
> what's attached to them?

  Under old MSDOS 'MSD' attempted to do this.  It often got it wrong.

  Under Win9x go into ControlPanel->Systemi->Device Manager.  Select
'Computer' (the root of the tree displayed) and click the Properties
button.

> 
> I suppose juggling IRQ's was like the good ol' days of juggling about to
> get 3 Kb more conventional memory...?

  Indeed.

  Regards,
      Harry.

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From: haeb@haeb.noc.easynet.net (Harry Broomhall)
Subject: Re: Plug'n'Play? I think not!
Date: 1999/06/29
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