Starting with Windows 95b (not the initial release of the OS) and OSR1, BIOS gained the ability to assign IRQs to devices. With OSR2 enabled, Windows 95 gained the ability to assign IRQs. This is known as PCI bus IRQ steering or PCI steering. Although with OSR2, Windows has the ability to assign the IRQs, those assignments are still typically made by the BIOS and Windows rarely overrides those assignments. Remember, this only works with the PCI bus. ISA has no steering capacity.
Home - Table Of Contents - Contact Us
CertiGuide to A+ (A+ 4 Real) (http://www.CertiGuide.com/apfr/) on CertiGuide.com
Version 1.0 - Version Date: March 29, 2005
Adapted with permission from a work created by Tcat Houser et al.
CertiGuide.com Version © Copyright 2005 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.