System Resources: I/O, IRQ, and DMA

If you’ve ever looked into the details of the Windows Device Manager, then you’ve probably seen references to I/O addresses, IRQ values, and DMA settings. In this CompTIA A+ training video, we’ll explain what all of these abbreviations mean and show you how the Windows Device Manager can be used to view and modify the system resources in your personal computer.

4 thoughts on “System Resources: I/O, IRQ, and DMA”

  1. When talking about DMA you said Direct Memory Access, but your slide showed Direct Memory Address …

    I have learned a great deal from your videos .. thank you for helping to jumpstart my IT career.

    1. Jared –

      It’s clearly Direct Memory Access, but my brain hiccuped when I made the slide. I’ve already updated the mistaken name in my 2009 materials, so look for updates for those after August.

  2. i already had basics on addresses, and you done a good job on explaining how in coincides with hardware requirements. thnx for the good info.

  3. This was very helpful. I was recently helping a friend and was able to resolve a conflict, but up until seeing this video, I don’t think I really got HOW I did it. Now I see it clearly. You do an awful lot of good with these videos. Thanks for putting them together. I appreciate your time and care.

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