October 2019
Beginner
426 pages
10h 44m
English
Content preview from Windows Server 2019 Administration Fundamentals - Second Edition
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Interrupt Request (IRQ) and Direct Memory Access (DMA)
In modern computers, an IRQ is identified by a decimal number from 0 to 31. From a technical point of view, it is a signal sent by a device through communication channels in order to get the attention of a processor when that device requires processing. In contrast, DMA, identified by a number from 0 to 8, represents a system resource used by a device to bypass the processor whenever such a device needs direct access to the RAM.
To view IRQ and DMA resource settings using Device Manager, take the following steps:
- Right-click the Start button to open the secret Start menu.
- In the secret Start menu, select Device Manager.
- In the Device Manager window, expand the device's category.
- Right-click ...
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