IRQ (Interrupt Request)

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Definition: An IRQ, short for Interrupt Request, is used in a computer to send exactly that - a request to interrupt the CPU by some other piece of hardware.

Most of the time you see IRQ referenced, it's alongside a number, called an IRQ number. For example, IRQ 4.

IRQ is pronounced as the letters I-R-Q, not as erk.

Also Known As: Interrupt Request


"Back in the early Windows days, IRQ errors were common and it took a lot of troubleshooting to fix them. IRQ's are handled much better in newer versions of Windows so you'll rarely see an IRQ conflict or other IRQ issue."